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Bump dependencies - #24

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chandradeepdey wants to merge 2 commits into
arthuraa:masterfrom
chandradeepdey:rocq_bump
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chandradeepdey wants to merge 2 commits into
arthuraa:masterfrom
chandradeepdey:rocq_bump

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  • rocq-core 9.2.0
  • rocq-mathcomp-ssreflect 2.6.0

chandradeepdey and others added 2 commits September 25, 2026 14:02
The dependency bump left flake.lock pointing at a nixpkgs from May that
predates Rocq 9.2 support, so the flake no longer evaluated.  Bumping
nixpkgs alone is not enough, because nixpkgs' own compatibility tables
have not caught up with 9.2 for two of our dependencies.

- nixpkgs: bump to a revision whose mathcomp-ssreflect 2.6.0 supports 9.2.
- deriving: select release 0.2.3 explicitly.  It does support 9.2 — the
  released metadata in rocq-prover/opam declares `coq < 9.3~` — but
  nixpkgs' defaultVersion switch still stops at 9.1 and so resolves to
  null, marking the package broken.  (The `coq < 9.2~` bound in deriving's
  own repository is a stale `dev` template, not the released metadata.)
- coq-lsp: no 9.2 release is tagged upstream, and nixpkgs stops at
  0.2.5+9.1; build the upstream v9.2 branch instead.
- rocq-mcp: stop following our nixpkgs and pin the revision its own
  flake.lock was tested against.  It is pure Python and independent of the
  Rocq version, and on a nixpkgs this recent its dependency chain pulls in
  python3-inline-snapshot, whose test suite fails.

Actris stays pinned at fa669607; its lock entry is unchanged.

Also correct the dependency versions in CLAUDE.md, which the bump updated
in README.md but not here, and record why the Nix build needs the two
overrides.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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