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+# Open PRs Meta-Review for igraph/rigraph
+
+**Generated:** 2026-01-22  
+**Total Open PRs:** 55 (excluding PR [#2524](https://github.com/igraph/rigraph/pull/2524) and [#2522](https://github.com/igraph/rigraph/pull/2522) which are WIP for this task)
+
+## Table of Contents
+
+1. [Executive Summary](#executive-summary)
+2. [High Priority - Ready or Near Ready](#high-priority---ready-or-near-ready)
+3. [Active Development - Recent PRs (Oct 2025+)](#active-development---recent-prs-oct-2025)
+4. [Documentation and Infrastructure](#documentation-and-infrastructure)
+5. [Blocked or Awaiting Decisions](#blocked-or-awaiting-decisions)
+6. [Stale PRs - Needs Attention or Closure](#stale-prs---needs-attention-or-closure)
+7. [Dependency Map](#dependency-map)
+
+---
+
+## Executive Summary
+
+### PR Status Overview
+
+- **Ready to merge (mergeable_state: clean)**: 2 PRs
+- **Needs CI fixes (mergeable_state: unstable/blocked)**: ~45 PRs
+- **Has merge conflicts (mergeable_state: dirty)**: 8 PRs
+- **WIP/Draft PRs**: 50 PRs
+- **Non-draft PRs**: 5 PRs
+
+### Key Observations
+
+1. **Mass October 2025 Activity**: ~30 PRs created by Copilot bot in late October 2025, focusing on API standardization, parameter naming, and exposing igraph 0.10 functions
+2. **API Breaking Changes**: Many PRs involve breaking changes (parameter renames, default changes, return type changes)
+3. **Code Generation Focus**: Multiple PRs around autogeneration and Stimulus framework improvements
+4. **Very Old PRs**: Several PRs from 2023-2024 that may need rebasing or closing
+5. **Common Themes**:
+   - Exposing new C library functions to R
+   - API consistency and standardization
+   - Parameter naming conventions
+   - Error handling improvements
+   - Test coverage expansion
+
+### Critical Decision Points
+
+- Many PRs depend on a "next" branch strategy for breaking changes
+- Need to decide which API changes to bundle together
+- Some PRs may be superseded by others (e.g., multiple parameter naming PRs)
+
+---
+
+## High Priority - Ready or Near Ready
+
+### Ready to Merge
+
+#### PR [#2515](https://github.com/igraph/rigraph/pull/2515): `feat: improve formatting of error messages from C`
+- **Status**: ✅ Non-draft, mergeable_state: clean
+- **Created**: 2026-01-06 by @maelle
+- **Comments**: 7, Review comments: 3
+- **Description**: Improves error message formatting from C library (fixes [#2202](https://github.com/igraph/rigraph/pull/2202))
+- **Recommendation**: **MERGE NOW** - Clean state, has reviews, addresses a specific issue
+- **Changes**: 175 additions, 81 deletions, 5 files
+
+#### PR [#2513](https://github.com/igraph/rigraph/pull/2513): `vendor: Update vendored sources`
+- **Status**: Non-draft, mergeable_state: unstable (CI issues)
+- **Created**: 2025-12-28 by github-actions[bot]
+- **Description**: Automated vendoring update
+- **Recommendation**: **MERGE AFTER CI FIXES** - Small change (4 additions, 2 deletions)
+- **Changes**: 4 additions, 2 deletions, 2 files
+
+### Near Ready - Minor Issues
+
+#### PR [#2485](https://github.com/igraph/rigraph/pull/2485): `feat: autogenerate 108 non-callback functions`
+- **Status**: Non-draft but mergeable_state: blocked
+- **Created**: 2025-11-04 by @Copilot
+- **Comments**: 13, Review comments: 4
+- **Description**: Major PR autogenerating 108 functions, reducing IGNORE specs from 128 to 19
+- **Recommendation**: **NEEDS REVIEW** - Large change, very comprehensive, has detailed progress tracking
+- **Changes**: 13,484 additions, 3,875 deletions, 7 files
+- **Notes**: All tests passing according to PR description, comprehensive test coverage added
+
+#### PR [#2417](https://github.com/igraph/rigraph/pull/2417): `Add make_hypercube()`
+- **Status**: Non-draft (unusual - most similar PRs are drafts)
+- **Created**: 2025-10-26 by @Copilot
+- **Description**: Exposes hypercube graph generator
+- **Recommendation**: Review as part of "expose igraph 0.10 functions" batch
+- **Potential Group**: Part of graph constructors batch (see [#2410](https://github.com/igraph/rigraph/pull/2410), [#2418](https://github.com/igraph/rigraph/pull/2418), [#2419](https://github.com/igraph/rigraph/pull/2419))
+
+---
+
+## Active Development - Recent PRs (Oct 2025+)
+
+This section contains ~30 PRs created in October 2025, primarily by the Copilot bot, focusing on API improvements and igraph 0.10 feature exposure.
+
+### API Standardization & Parameter Naming
+
+These PRs aim to create consistent naming conventions across the API. **Likely interdependent** and should be reviewed together.
+
+#### PR [#2458](https://github.com/igraph/rigraph/pull/2458): Standardize vertex selector parameter name to `vids`
+- **Created**: 2025-10-28, Draft
+- **Recommendation**: Bundle with other parameter naming PRs
+- **May conflict with**: [#2450](https://github.com/igraph/rigraph/pull/2450) (contradictory naming - one says `vids`, other says `vertices`)
+
+#### PR [#2456](https://github.com/igraph/rigraph/pull/2456): Standardize algorithm parameter names from `algo`/`method` to `algorithm`
+- **Created**: 2025-10-28, Draft
+- **Recommendation**: Part of naming standardization batch
+
+#### PR [#2450](https://github.com/igraph/rigraph/pull/2450): Standardize API parameter naming: `nodes` → `n`, `vids` → `vertices`
+- **Created**: 2025-10-27, Draft
+- **⚠️ CONFLICT**: Contradicts [#2458](https://github.com/igraph/rigraph/pull/2458) which standardizes TO `vids`
+- **Recommendation**: **RESOLVE CONFLICT** - Decide on `vids` vs `vertices` first
+
+### Breaking Changes & Deprecations
+
+#### PR [#2457](https://github.com/igraph/rigraph/pull/2457): `fix: Add deprecation warnings for inconsistent mode parameter defaults`
+- **Created**: 2025-10-28, Draft
+- **Recommendation**: Should go in breaking change release (likely "next" branch)
+
+#### PR [#2455](https://github.com/igraph/rigraph/pull/2455): `fix: Return parent as numeric vector in bfs() and dfs() instead of igraph.vs`
+- **Created**: 2025-10-28, Draft
+- **Type**: Breaking change
+- **Recommendation**: Bundle with other breaking changes for next major release
+
+#### PR [#2453](https://github.com/igraph/rigraph/pull/2453): `feat: make graph constructors default to undirected for consistency`
+- **Created**: 2025-10-28, Draft
+- **Type**: Breaking change
+- **Recommendation**: Major breaking change, needs careful consideration
+
+#### PR [#2452](https://github.com/igraph/rigraph/pull/2452): `feat: error when adding named vertices to non-empty unnamed graphs`
+- **Created**: 2025-10-28, Draft
+- **Type**: Breaking change (new error conditions)
+- **Recommendation**: Part of consistency improvements
+
+### New Feature Exposure (igraph 0.10 functions)
+
+These PRs expose new functionality from the underlying igraph C library.
+
+#### PR [#2410](https://github.com/igraph/rigraph/pull/2410): `feat: expose igraph 0.10 functions`
+- **Created**: 2025-10-26, Draft
+- **Functions**: `any_mutual()`, `invalidate_cache()`, and 8 generator functions
+- **Recommendation**: **COORDINATE** with related feature PRs ([#2417](https://github.com/igraph/rigraph/pull/2417)-2420, [#2426](https://github.com/igraph/rigraph/pull/2426))
+
+#### PR [#2420](https://github.com/igraph/rigraph/pull/2420): `Expose igraph_degree_correlation_vector() as knnk()`
+- **Created**: 2025-10-26, Draft
+- **Recommendation**: Part of igraph 0.10 feature batch
+
+#### PR [#2419](https://github.com/igraph/rigraph/pull/2419): `Add make_tri_lattice()` (triangular lattice generator)
+- **Created**: 2025-10-26, Draft
+- **Group**: Graph constructors
+
+#### PR [#2418](https://github.com/igraph/rigraph/pull/2418): `feat: add make_hex_lattice() and hex_lattice() functions`
+- **Created**: 2025-10-26, Draft
+- **Group**: Graph constructors
+
+#### PR [#2417](https://github.com/igraph/rigraph/pull/2417): `Add make_hypercube()`
+- **Created**: 2025-10-26, Non-draft
+- **Group**: Graph constructors
+
+#### PR [#2411](https://github.com/igraph/rigraph/pull/2411): `feat: Add graph_join() function to R interface`
+- **Created**: 2025-10-26, Draft
+- **Recommendation**: Part of igraph 0.10 feature batch
+
+#### PR [#2408](https://github.com/igraph/rigraph/pull/2408): `feat: Expose widest paths functions`
+- **Created**: 2025-10-26, Draft
+- **Functions**: `widest_paths()` and `widest_path_widths()`
+- **Recommendation**: Part of igraph 0.10 feature batch
+
+#### PR [#2404](https://github.com/igraph/rigraph/pull/2404): `feat: expose mycielskian() and make_mycielski_graph()`
+- **Created**: 2025-10-26, Draft
+- **Recommendation**: Part of graph constructors batch
+
+#### PR [#2445](https://github.com/igraph/rigraph/pull/2445): `feat: expose igraph_motifs_randesu_callback() to R`
+- **Created**: 2025-10-27, Draft
+- **Purpose**: Efficient motif sampling
+- **Recommendation**: Review separately - involves callbacks
+
+#### PR [#2426](https://github.com/igraph/rigraph/pull/2426): `feat: add as_veincidence_matrix()`
+- **Created**: 2025-10-26, Draft
+- **Description**: Vertex-edge incidence matrices
+- **Recommendation**: Part of utility functions batch
+
+### Bug Fixes & Improvements
+
+#### PR [#2432](https://github.com/igraph/rigraph/pull/2432): `fix: Support character labels in assortativity_nominal()`
+- **Created**: 2025-10-26, Draft
+- **Recommendation**: Small fix, should be easy to merge
+
+#### PR [#2427](https://github.com/igraph/rigraph/pull/2427): `fix: biconnected_components() returns invalid result fields`
+- **Created**: 2025-10-26, Draft
+- **Type**: Bug fix
+- **Recommendation**: Should be merged relatively soon
+
+#### PR [#2441](https://github.com/igraph/rigraph/pull/2441): `fix: remove problematic defaults from sample_last_cit() parameters`
+- **Created**: 2025-10-26, Draft
+- **Type**: API fix
+- **Recommendation**: Part of API cleanup batch
+
+#### PR [#2440](https://github.com/igraph/rigraph/pull/2440): `feat: add as.vector parameter to as_edgelist()`
+- **Created**: 2025-10-26, Draft
+- **Recommendation**: Small enhancement, low risk
+
+#### PR [#2436](https://github.com/igraph/rigraph/pull/2436): `feat: standardize optional vertex parameters to use NULL default`
+- **Created**: 2025-10-26, Draft
+- **Recommendation**: Part of API standardization
+
+### Infrastructure & Dependencies
+
+#### PR [#2431](https://github.com/igraph/rigraph/pull/2431): `Use vctrs for vector recycling`
+- **Created**: 2025-10-26, Draft
+- **Type**: Infrastructure change (new dependency)
+- **Recommendation**: **NEEDS CAREFUL REVIEW** - Adds new dependency
+
+### Comparison & Review PRs
+
+#### PR [#2421](https://github.com/igraph/rigraph/pull/2421): `Changes between main and next for review`
+- **Created**: 2025-10-26 by @krlmlr, Draft
+- **Purpose**: Comparing branches for release planning
+- **Recommendation**: **REVIEW ONLY** - Not meant to be merged as-is
+
+### Work In Progress
+
+#### PR [#2439](https://github.com/igraph/rigraph/pull/2439): `[WIP] Fix functions ignoring return.vs.es option`
+- **Created**: 2025-10-26, Draft
+- **Status**: Explicitly WIP
+- **Recommendation**: Wait for author to complete
+
+#### PR [#2437](https://github.com/igraph/rigraph/pull/2437): `test: Snapshot updates for rcc-smoke (null)`
+- **Created**: 2025-10-26, Draft by github-actions[bot]
+- **Recommendation**: Automated test updates, review and merge if valid
+
+---
+
+## Documentation and Infrastructure
+
+### Documentation
+
+#### PR [#2518](https://github.com/igraph/rigraph/pull/2518): `Automatic linking to C docs`
+- **Status**: Draft, mergeable_state: dirty (merge conflicts)
+- **Created**: 2026-01-13 by @maelle
+- **Comments**: 0, Review comments: 1
+- **Description**: POC for automatic linking to C documentation
+- **Changes**: 1,931 additions, 387 deletions, 520 files
+- **Recommendation**: **NEEDS REBASE** - Large documentation improvement, has conflicts
+- **Notes**: Based on treesitter for finding function calls
+
+#### PR [#2500](https://github.com/igraph/rigraph/pull/2500): `docs(revdep): Analyze and document reverse dependency problems`
+- **Created**: 2025-11-16 by @Copilot, Draft
+- **Recommendation**: Important for CRAN releases, should be prioritized
+
+#### PR [#1453](https://github.com/igraph/rigraph/pull/1453): `docs: add example for consensus_tree()`
+- **Created**: 2024-08-20, Draft
+- **Age**: 17 months old
+- **Recommendation**: Small doc addition, should be easy to merge or close
+
+### Build & Infrastructure
+
+#### PR [#2469](https://github.com/igraph/rigraph/pull/2469): `fix: update wrapper functions for C API parameter changes`
+- **Created**: 2025-11-01 by @Copilot, Draft
+- **Recommendation**: Likely needed for C library update
+
+#### PR [#1577](https://github.com/igraph/rigraph/pull/1577): `chore: Add checks to generated code`
+- **Created**: 2024-11-07, Non-draft
+- **Labels**: blocked
+- **Age**: 14 months old
+- **Recommendation**: **BLOCKED** - Resolve blocker or close
+
+#### PR [#1559](https://github.com/igraph/rigraph/pull/1559): `chore: update arpack to arpack-ng 3.9.1`
+- **Created**: 2024-10-21, Draft
+- **Labels**: hackathon-topic
+- **Age**: 15 months old
+- **Recommendation**: **NEEDS DECISION** - Dependency update, may need rebasing
+
+#### PR [#1871](https://github.com/igraph/rigraph/pull/1871): `chore: fix with {flir}`
+- **Created**: 2025-06-10, Draft
+- **Labels**: hackathon-topic, release-followup
+- **Age**: 7 months old
+- **Recommendation**: Review or close
+
+### Deprecation & Cleanup
+
+#### PR [#2187](https://github.com/igraph/rigraph/pull/2187): `chore: remove console() and tkplot()`
+- **Created**: 2025-10-03, Non-draft
+- **Labels**: release-followup
+- **Age**: 3 months old
+- **Recommendation**: Breaking change, needs to go in next major release
+
+#### PR [#2002](https://github.com/igraph/rigraph/pull/2002): `chore: rm some tk stuff`
+- **Created**: 2025-07-22, Draft
+- **Labels**: hackathon-topic, release-followup
+- **Recommendation**: Related to [#2187](https://github.com/igraph/rigraph/pull/2187), bundle together
+
+#### PR [#1502](https://github.com/igraph/rigraph/pull/1502): `chore: stricter deprecation for layout.spring() and layout.svd()`
+- **Created**: 2024-09-10, Draft
+- **Labels**: lifecycle
+- **Age**: 16 months old
+- **Recommendation**: Part of deprecation cycle, review or close
+
+---
+
+## Blocked or Awaiting Decisions
+
+### Explicitly Blocked
+
+#### PR [#1577](https://github.com/igraph/rigraph/pull/1577): `chore: Add checks to generated code`
+- **Created**: 2024-11-07, Non-draft
+- **Labels**: ⛔ blocked
+- **Age**: 14 months old
+- **Recommendation**: **RESOLVE BLOCKER OR CLOSE**
+
+#### PR [#1401](https://github.com/igraph/rigraph/pull/1401): `test: Test adding vertex names`
+- **Created**: 2024-06-11, Draft
+- **Labels**: ⛔ blocked
+- **Age**: 19 months old
+- **Recommendation**: **RESOLVE BLOCKER OR CLOSE**
+
+### Needs Design Decisions
+
+#### PR [#1971](https://github.com/igraph/rigraph/pull/1971): `[WIP] Adding vertex names when a named and unnamed graph are combined?`
+- **Created**: 2025-07-10, Draft
+- **Status**: Explicitly WIP, design question
+- **Age**: 6 months old
+- **Recommendation**: **NEEDS DESIGN DECISION** - How should graph combination handle names?
+
+#### PR [#2375](https://github.com/igraph/rigraph/pull/2375): `[WIP] Remove .Call() usage from user code`
+- **Created**: 2025-10-25, Draft
+- **Age**: 3 months old
+- **Recommendation**: **NEEDS REVIEW** - Infrastructure improvement
+
+### Stimulus/Code Generation
+
+#### PR [#2127](https://github.com/igraph/rigraph/pull/2127): `chore: start work on community_leading_eigenvector()`
+- **Created**: 2025-09-08, Draft
+- **Labels**: stimulus
+- **Age**: 4 months old
+- **Recommendation**: May be superseded by [#2485](https://github.com/igraph/rigraph/pull/2485)
+
+#### PR [#2100](https://github.com/igraph/rigraph/pull/2100): `chore: autogenerate igraph_incident()`
+- **Created**: 2025-09-01, Non-draft
+- **Labels**: stimulus, hackathon-topic
+- **Age**: 4 months old
+- **Recommendation**: May be superseded by [#2485](https://github.com/igraph/rigraph/pull/2485)
+
+---
+
+## Stale PRs - Needs Attention or Closure
+
+### Very Old (2023-2024)
+
+#### PR [#758](https://github.com/igraph/rigraph/pull/758): `feat!: Accept numeric edge IDs`
+- **Created**: 2023-04-02, Draft
+- **Age**: **33 months old** 🔴
+- **Type**: Breaking change
+- **Recommendation**: **REVIEW OR CLOSE** - Very old breaking change, may be outdated
+
+#### PR [#942](https://github.com/igraph/rigraph/pull/942): `fix: limit the rate of interruption checks`
+- **Created**: 2023-11-04, Draft
+- **Age**: **26 months old** 🔴
+- **Recommendation**: **REVIEW OR CLOSE** - Performance fix, may need rebasing
+
+#### PR [#1401](https://github.com/igraph/rigraph/pull/1401): `test: Test adding vertex names`
+- **Created**: 2024-06-11, Draft, Blocked
+- **Age**: 19 months old
+- **Recommendation**: **RESOLVE OR CLOSE**
+
+#### PR [#1502](https://github.com/igraph/rigraph/pull/1502): `chore: stricter deprecation for layout.spring() and layout.svd()`
+- **Created**: 2024-09-10, Draft
+- **Age**: 16 months old
+- **Recommendation**: **REVIEW OR CLOSE**
+
+#### PR [#1577](https://github.com/igraph/rigraph/pull/1577): `chore: Add checks to generated code`
+- **Created**: 2024-11-07, Blocked
+- **Age**: 14 months old
+- **Recommendation**: **RESOLVE OR CLOSE**
+
+### Old (6-12 months)
+
+#### PR [#1871](https://github.com/igraph/rigraph/pull/1871): `chore: fix with {flir}`
+- **Created**: 2025-06-10, Draft
+- **Age**: 7 months old
+
+#### PR [#1894](https://github.com/igraph/rigraph/pull/1894): `fix: Allow matrix attributes by checking their vector size`
+- **Created**: 2025-06-26, Draft
+- **Age**: 7 months old
+
+#### PR [#1932](https://github.com/igraph/rigraph/pull/1932): `feat: add error if adding vertices results in duplicated names`
+- **Created**: 2025-07-03, Non-draft
+- **Age**: 6 months old
+
+#### PR [#1968](https://github.com/igraph/rigraph/pull/1968): `feat: implement read/write graphs from/to string`
+- **Created**: 2025-07-09, Draft
+- **Age**: 6 months old
+
+#### PR [#1971](https://github.com/igraph/rigraph/pull/1971): `[WIP] Adding vertex names when a named and unnamed graph are combined?`
+- **Created**: 2025-07-10, Draft
+- **Age**: 6 months old
+
+#### PR [#1981](https://github.com/igraph/rigraph/pull/1981): `feat: added simple check to graph_from_literal()`
+- **Created**: 2025-07-15, Draft
+- **Age**: 6 months old
+- **Labels**: release-followup
+
+#### PR [#2003](https://github.com/igraph/rigraph/pull/2003): `chore: create check_vertex()`
+- **Created**: 2025-07-22, Draft
+- **Labels**: release-followup
+- **Age**: 6 months old
+
+#### PR [#2006](https://github.com/igraph/rigraph/pull/2006): `chore: improve errors in iterators.R`
+- **Created**: 2025-07-22, Non-draft
+- **Age**: 6 months old
+
+#### PR [#2010](https://github.com/igraph/rigraph/pull/2010): `test: Snapshot updates for rcc-smoke (null)`
+- **Created**: 2025-07-22, Non-draft
+- **Age**: 6 months old
+- **Type**: Automated test update
+
+### Medium Age (3-6 months)
+
+#### PR [#2058](https://github.com/igraph/rigraph/pull/2058): `fix: Fix tests on next branch`
+- **Created**: 2025-08-17, Draft
+- **Age**: 5 months old
+
+#### PR [#2100](https://github.com/igraph/rigraph/pull/2100): `chore: autogenerate igraph_incident()`
+- **Created**: 2025-09-01, Non-draft
+- **Age**: 4 months old
+
+#### PR [#2127](https://github.com/igraph/rigraph/pull/2127): `chore: start work on community_leading_eigenvector()`
+- **Created**: 2025-09-08, Draft
+- **Age**: 4 months old
+
+#### PR [#2187](https://github.com/igraph/rigraph/pull/2187): `chore: remove console() and tkplot()`
+- **Created**: 2025-10-03, Non-draft
+- **Age**: 3 months old
+
+#### PR [#2219](https://github.com/igraph/rigraph/pull/2219): `fix NA check for lower upper tri`
+- **Created**: 2025-10-23, Non-draft
+- **Labels**: hackathon-topic
+- **Age**: 3 months old
+
+---
+
+## Dependency Map
+
+### Semantic Dependencies & Groupings
+
+#### Group 1: Parameter Naming Standardization (⚠️ CONFLICTS)
+**Decision needed: Resolve naming conflicts first**
+
+- [#2458](https://github.com/igraph/rigraph/pull/2458): Standardize to `vids` ⚠️
+- [#2450](https://github.com/igraph/rigraph/pull/2450): Standardize to `vertices` ⚠️ (CONFLICTS with [#2458](https://github.com/igraph/rigraph/pull/2458))
+- [#2456](https://github.com/igraph/rigraph/pull/2456): Standardize algorithm params to `algorithm`
+- [#2436](https://github.com/igraph/rigraph/pull/2436): Standardize optional vertex parameters to `NULL` default
+
+**Recommendation**: Decide on unified naming convention, then merge PRs in order
+
+#### Group 2: igraph 0.10 Function Exposure - Graph Constructors
+**Can be merged independently but should be reviewed together for consistency**
+
+- [#2410](https://github.com/igraph/rigraph/pull/2410): Core igraph 0.10 functions (includes 8 generators)
+- [#2417](https://github.com/igraph/rigraph/pull/2417): `make_hypercube()` (non-draft)
+- [#2418](https://github.com/igraph/rigraph/pull/2418): `make_hex_lattice()` and `hex_lattice()`
+- [#2419](https://github.com/igraph/rigraph/pull/2419): `make_tri_lattice()`
+- [#2404](https://github.com/igraph/rigraph/pull/2404): `mycielskian()` and `make_mycielski_graph()`
+
+**Recommendation**: Review all together for API consistency, can merge incrementally
+
+#### Group 3: igraph 0.10 Function Exposure - Other Functions
+**Can be merged independently**
+
+- [#2420](https://github.com/igraph/rigraph/pull/2420): `knnk()` (degree correlation)
+- [#2408](https://github.com/igraph/rigraph/pull/2408): Widest paths functions
+- [#2411](https://github.com/igraph/rigraph/pull/2411): `graph_join()`
+- [#2426](https://github.com/igraph/rigraph/pull/2426): `as_veincidence_matrix()`
+- [#2445](https://github.com/igraph/rigraph/pull/2445): Motif sampling (involves callbacks, separate review)
+
+#### Group 4: Breaking Changes for Next Major Release
+**Should be bundled together or coordinated**
+
+- [#2453](https://github.com/igraph/rigraph/pull/2453): Graph constructors default to undirected
+- [#2455](https://github.com/igraph/rigraph/pull/2455): `bfs()`/`dfs()` return numeric instead of igraph.vs
+- [#2457](https://github.com/igraph/rigraph/pull/2457): Deprecation warnings for `mode` parameter
+- [#2452](https://github.com/igraph/rigraph/pull/2452): Error on adding named vertices to unnamed graphs
+- [#2187](https://github.com/igraph/rigraph/pull/2187): Remove `console()` and `tkplot()`
+- [#2002](https://github.com/igraph/rigraph/pull/2002): Remove tk stuff (related to [#2187](https://github.com/igraph/rigraph/pull/2187))
+- Possibly: [#758](https://github.com/igraph/rigraph/pull/758) (numeric edge IDs) if still relevant
+
+#### Group 5: Bug Fixes - Can Merge Independently
+**Low risk, should be prioritized**
+
+- [#2432](https://github.com/igraph/rigraph/pull/2432): Character labels in `assortativity_nominal()`
+- [#2427](https://github.com/igraph/rigraph/pull/2427): Fix `biconnected_components()` result fields
+- [#2441](https://github.com/igraph/rigraph/pull/2441): Remove problematic defaults from `sample_last_cit()`
+- [#2219](https://github.com/igraph/rigraph/pull/2219): NA check for lower/upper tri
+
+#### Group 6: Infrastructure & Code Generation
+**May have dependencies**
+
+- [#2485](https://github.com/igraph/rigraph/pull/2485): Autogenerate 108 functions (MAJOR - review first)
+- [#2469](https://github.com/igraph/rigraph/pull/2469): Update wrappers for C API changes
+- [#2375](https://github.com/igraph/rigraph/pull/2375): Remove `.Call()` usage from user code
+- [#2127](https://github.com/igraph/rigraph/pull/2127): Work on `community_leading_eigenvector()` (may be superseded by [#2485](https://github.com/igraph/rigraph/pull/2485))
+- [#2100](https://github.com/igraph/rigraph/pull/2100): Autogenerate `igraph_incident()` (may be superseded by [#2485](https://github.com/igraph/rigraph/pull/2485))
+
+#### Group 7: Documentation
+**Can be merged independently**
+
+- [#2518](https://github.com/igraph/rigraph/pull/2518): Automatic C docs linking (needs rebase)
+- [#2500](https://github.com/igraph/rigraph/pull/2500): Reverse dependency analysis
+- [#1453](https://github.com/igraph/rigraph/pull/1453): Add example for `consensus_tree()`
+
+### Technical Dependencies
+
+1. **[#2485](https://github.com/igraph/rigraph/pull/2485) may supersede**: [#2127](https://github.com/igraph/rigraph/pull/2127), [#2100](https://github.com/igraph/rigraph/pull/2100) (check if functions already generated)
+2. **[#2458](https://github.com/igraph/rigraph/pull/2458) and [#2450](https://github.com/igraph/rigraph/pull/2450) conflict**: Need to resolve `vids` vs `vertices` naming
+3. **Breaking changes** ([#2453](https://github.com/igraph/rigraph/pull/2453), [#2455](https://github.com/igraph/rigraph/pull/2455), [#2457](https://github.com/igraph/rigraph/pull/2457), [#2452](https://github.com/igraph/rigraph/pull/2452), [#2187](https://github.com/igraph/rigraph/pull/2187), [#2002](https://github.com/igraph/rigraph/pull/2002)): Should go through "next" branch together
+4. **[#2421](https://github.com/igraph/rigraph/pull/2421) is special**: Review-only PR comparing main and next branches
+
+---
+
+## Recommendations
+
+### Immediate Actions (Next 2 Weeks)
+
+1. **MERGE NOW**:
+   - [#2515](https://github.com/igraph/rigraph/pull/2515): Error message formatting (clean, reviewed)
+   - [#2513](https://github.com/igraph/rigraph/pull/2513): Vendor update (after CI fixes)
+
+2. **REVIEW URGENTLY**:
+   - [#2485](https://github.com/igraph/rigraph/pull/2485): Autogenerate 108 functions - **MASSIVE PR**, needs thorough review
+   - Determine if [#2485](https://github.com/igraph/rigraph/pull/2485) supersedes [#2100](https://github.com/igraph/rigraph/pull/2100), [#2127](https://github.com/igraph/rigraph/pull/2127)
+
+3. **RESOLVE CONFLICTS**:
+   - [#2458](https://github.com/igraph/rigraph/pull/2458) vs [#2450](https://github.com/igraph/rigraph/pull/2450): Decide on `vids` or `vertices`
+   - Check [#2421](https://github.com/igraph/rigraph/pull/2421) to understand main vs next strategy
+
+4. **UNBLOCK**:
+   - [#1577](https://github.com/igraph/rigraph/pull/1577): Add checks to generated code - resolve blocker or close
+   - [#1401](https://github.com/igraph/rigraph/pull/1401): Test vertex names - resolve blocker or close
+
+### Short Term (Next Month)
+
+1. **Group Review - igraph 0.10 Functions**:
+   - Review [#2410](https://github.com/igraph/rigraph/pull/2410), [#2417](https://github.com/igraph/rigraph/pull/2417)-2420, [#2404](https://github.com/igraph/rigraph/pull/2404), [#2408](https://github.com/igraph/rigraph/pull/2408), [#2411](https://github.com/igraph/rigraph/pull/2411), [#2426](https://github.com/igraph/rigraph/pull/2426) together
+   - Ensure consistent API design
+   - Can merge incrementally after review
+
+2. **Bug Fixes**:
+   - Merge [#2432](https://github.com/igraph/rigraph/pull/2432), [#2427](https://github.com/igraph/rigraph/pull/2427), [#2441](https://github.com/igraph/rigraph/pull/2441), [#2219](https://github.com/igraph/rigraph/pull/2219) (low risk)
+
+3. **Documentation**:
+   - Rebase and merge [#2518](https://github.com/igraph/rigraph/pull/2518) (C docs linking)
+   - Merge [#2500](https://github.com/igraph/rigraph/pull/2500) (revdep analysis)
+
+### Medium Term (Next Quarter)
+
+1. **Plan Breaking Changes Release**:
+   - Bundle [#2453](https://github.com/igraph/rigraph/pull/2453), [#2455](https://github.com/igraph/rigraph/pull/2455), [#2457](https://github.com/igraph/rigraph/pull/2457), [#2452](https://github.com/igraph/rigraph/pull/2452), [#2187](https://github.com/igraph/rigraph/pull/2187), [#2002](https://github.com/igraph/rigraph/pull/2002)
+   - Review [#758](https://github.com/igraph/rigraph/pull/758) (numeric edge IDs) - include or close
+   - Coordinate with "next" branch strategy ([#2421](https://github.com/igraph/rigraph/pull/2421))
+
+2. **Parameter Naming Standardization**:
+   - After resolving [#2458](https://github.com/igraph/rigraph/pull/2458) vs [#2450](https://github.com/igraph/rigraph/pull/2450) conflict
+   - Merge [#2456](https://github.com/igraph/rigraph/pull/2456), [#2436](https://github.com/igraph/rigraph/pull/2436)
+
+3. **Infrastructure**:
+   - Review [#2375](https://github.com/igraph/rigraph/pull/2375) (.Call() removal)
+   - Review [#2431](https://github.com/igraph/rigraph/pull/2431) (vctrs dependency)
+
+### Cleanup Actions
+
+**Close or Complete**:
+- [#942](https://github.com/igraph/rigraph/pull/942): 26 months old - rebase or close
+- [#758](https://github.com/igraph/rigraph/pull/758): 33 months old - review and decide
+- [#1502](https://github.com/igraph/rigraph/pull/1502): 16 months old - complete deprecation or close
+- [#1559](https://github.com/igraph/rigraph/pull/1559): 15 months old - rebase ARPACK update or close
+- [#1871](https://github.com/igraph/rigraph/pull/1871): 7 months old - review or close
+- [#2439](https://github.com/igraph/rigraph/pull/2439): WIP - wait for completion or close
+- [#2437](https://github.com/igraph/rigraph/pull/2437): Automated test updates - review and merge/close
+
+---
+
+## Statistics
+
+### By Type (from title prefix)
+- `feat:` - 20 PRs (new features)
+- `fix:` - 8 PRs (bug fixes)
+- `chore:` - 11 PRs (maintenance)
+- `docs:` - 2 PRs (documentation)
+- `test:` - 3 PRs (tests)
+- Other/WIP - 11 PRs
+
+### By Age
+- Very new (< 1 month): 3 PRs
+- Recent (1-3 months): 33 PRs
+- Medium (3-6 months): 8 PRs
+- Old (6-12 months): 6 PRs
+- Very old (12+ months): 5 PRs
+
+### By Author
+- Copilot bot: ~35 PRs
+- @maelle: 2 PRs
+- @krlmlr: 1 PR
+- github-actions[bot]: 2 PRs
+- Others: ~15 PRs
+
+### By Status
+- Draft: 50 PRs
+- Non-draft: 5 PRs
+- Explicitly WIP: 3 PRs
+- Blocked: 2 PRs
+
+---
+
+## Conclusion
+
+The repository has a large backlog of PRs, with a significant burst of activity in October 2025 focused on API standardization and exposing igraph 0.10 functions. Key priorities should be:
+
+1. **Resolve the naming conflict** between [#2458](https://github.com/igraph/rigraph/pull/2458) and [#2450](https://github.com/igraph/rigraph/pull/2450)
+2. **Review and merge** [#2485](https://github.com/igraph/rigraph/pull/2485) (major autogeneration work)
+3. **Quick wins**: Merge bug fixes ([#2432](https://github.com/igraph/rigraph/pull/2432), [#2427](https://github.com/igraph/rigraph/pull/2427), [#2441](https://github.com/igraph/rigraph/pull/2441), [#2219](https://github.com/igraph/rigraph/pull/2219)) and [#2515](https://github.com/igraph/rigraph/pull/2515)
+4. **Plan breaking changes** for next major release using the "next" branch
+5. **Close stale PRs** older than 12 months that aren't being actively worked on
+6. **Group review** the igraph 0.10 function exposure PRs for consistency
+
+The October 2025 PRs show good systematic work on API consistency, but need coordination to avoid conflicts and ensure a coherent design.