heed & heed3

This release brings better-polished support for the heed/heed3 duality. It also improves the documentation, adds support for custom duplicate sort comparators, supports the PREV_SNAPSHOT flag, better support for Thread Local Storage (TLS)-backed of transactions, and bumps LMDB to the latest patch.

What's Changed

• Combined version of LMDB mdb.master and mdb.master3 by @Kerollmops in https://github.com/meilisearch/heed/pull/278
• Upgrade dependencies by @Kerollmops in https://github.com/meilisearch/heed/pull/295, https://github.com/meilisearch/heed/pull/304, https://github.com/meilisearch/heed/pull/320, and https://github.com/meilisearch/heed/pull/303
• List the examples in the Cargo tomls by @Kerollmops in https://github.com/meilisearch/heed/pull/298
• Parametric TLS for read transactions by @Kerollmops in https://github.com/meilisearch/heed/pull/300
• Fix the MDB_NOTLS documentation by @Kerollmops in https://github.com/meilisearch/heed/pull/302
• Update license for 2025 by @meili-bot in https://github.com/meilisearch/heed/pull/305
• Bump LMDB commit, use GitLab for LMDB and improve the build script by @Kerollmops in https://github.com/meilisearch/heed/pull/310 and https://github.com/meilisearch/heed/pull/311
• Break and improve the Env::copy_to_file method by @Kerollmops in https://github.com/meilisearch/heed/pull/312
• Introduce the PREV_SNAPSHOT flag by @irevoire in https://github.com/meilisearch/heed/pull/296
• Rename FIXED_MAP flag name by @Kerollmops in https://github.com/meilisearch/heed/pull/313
• Expose USE_VALGRIND compilation flag as use-valgrind feature by @dureuill in https://github.com/meilisearch/heed/pull/288
• Introduce AnyTls by @dureuill in https://github.com/meilisearch/heed/pull/315
• Show ranges of slice in the doc by @Kerollmops in https://github.com/meilisearch/heed/pull/318
• More Env parameter accessors by @Kerollmops in https://github.com/meilisearch/heed/pull/321
• Setting NDEBUG on release builds by @Kerollmops in https://github.com/meilisearch/heed/pull/324
• Bump -sys crates and heed/heed3 versions by @Kerollmops in https://github.com/meilisearch/heed/pull/325
• Introduce the Env::copy_to_path method by @Kerollmops in https://github.com/meilisearch/heed/pull/326
• Make the Env<WithTls> the default by @Kerollmops in https://github.com/meilisearch/heed/pull/327
• Add Dup Sort Custom Comparator support by @Kerollmops and @oXtxNt9U in https://github.com/meilisearch/heed/pull/319

Full Changelog: https://github.com/meilisearch/heed/compare/v0.21.0...v0.22.0