rvm: switch binary serialization to postcard (microsoft#582)

Move RVM binary encoding from bincode to postcard and bump the format version. Update test helpers, docs, changelog, and refresh lockfiles after the swap.

Closes microsoft#575

Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>

Author: anakrish

.github/workflows/rust-clippy.yml

@@ -49,9 +49,9 @@ jobs:
 
       - name: Run rust-clippy
         run: cargo xtask clippy --sarif rust-clippy-results.sarif
-        continue-on-error: true
 
       - name: Upload analysis results to GitHub
+        if: ${{ hashFiles('rust-clippy-results.sarif') != '' }}
         uses: github/codeql-action/upload-sarif@89a39a4e59826350b863aa6b6252a07ad50cf83e # v3.29.11
         with:
           sarif_file: rust-clippy-results.sarif

CHANGELOG.md

@@ -10,6 +10,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Azure RBAC condition interpreter with builtin evaluation coverage and YAML test suite, including quantifier (ForAnyOfAnyValues/ForAllOfAllValues), datetime (DateTimeEquals), IP (IpInRange), GUID (GuidEquals), list (ListContains), and string (StringEquals) semantics.
 - FFI surface for Azure RBAC condition evaluation (see bindings changelog for language-specific wrappers).
 
+### Changed
+- [**breaking**] Switch RVM binary serialization to postcard, bump the format to v4, and mark v1-3 loads as partial (recompile required).
+
 ## [0.9.1](https://github.com/microsoft/regorus/compare/regorus-v0.9.0...regorus-v0.9.1) - 2026-02-06
 
 ### Fixed

Cargo.lock

@@ -39,7 +39,7 @@ net = ["dep:ipnet"]
 no_std = ["lazy_static/spin_no_std"]
 opa-runtime = []
 regex = ["dep:regex"]
-rvm = ["dep:bincode", "dep:indexmap"]
+rvm = ["dep:postcard", "dep:indexmap"]
 semver = ["dep:semver"]
 allocator-memory-limits = ["std", "mimalloc", "mimalloc/allocator-memory-limits"]
 std = ["rand/std", "rand/std_rng", "serde_json/std", "msvc_spectre_libs" ]
@@ -128,7 +128,7 @@ mimalloc = { package = "regorus-mimalloc", path = "mimalloc", version = "2.2.6",
 
 # rvm related deps
 indexmap = { version = "2.12.1", default-features = false, features = ["serde"], optional = true }
-bincode = { version = "2.0.1", default-features = false, features = ["alloc", "serde"], optional = true }
+postcard = { version = "1.1.3", default-features = false, features = ["alloc"], optional = true }
 
 [dev-dependencies]
 anyhow = "1.0.45"