MMTk 0.31.0

0.31.0 (2025-04-17)

What's Changed

Plan

• Remove dead trace_object methods. by @wks in #1277
• implement mutator builder by @tianleq in #1287
• Fix incongruent defaults for copying GCs by @k-sareen in #1296

Policy

• Clear stale line mark state by @tianleq in #1268
• Ensure log bits are correctly maintained by @k-sareen in #1169

Scheduler

• Make work packet buffer size configurable from one location by @k-sareen in #1285
• Make EDGES_WORK_BUFFER_SIZE constant public to bindings by @k-sareen in #1291

CI

• Fix Clippy warning in 1.84.0 by @wks in #1262
• Fix julia extended tests by @qinsoon in #1270
• Fix to bytemuck_derive 1.8.1 by @qinsoon in #1288
• Fix lychee command by @wks in #1286
• Fix clippy warnings for Rust 1.86 by @wks in #1297
• Properly handle multiple plans in GITHUB-CI in CI scripts by @qinsoon in #1301

Documentation

• Special topic chapter for finalizers and weak references by @wks in #1265
• User Guide chapter for address-based hashing by @wks in #1294

Misc

• Move to Rust 1.83 by @qinsoon in #1253
• Unique object enqueuing option by @wks in #1255
• Fix a subtraction overflow in get_free_pages. by @wks in #1261
• Force fixed heap size when using NoGC by @wks in #1264
• Make GC triggering and heap resizing consistent by @wks in #1266
• Bump MSRV to 1.74.1 by @wks in #1276
• Fix clippy warning about operator precedence by @wks in #1280
• Fixing MSRV-breaking dependencies by @wks in #1284
• Check if an object is in our heap before using VM map during counting live bytes by @qinsoon in #1289
• Aggregate live bytes info in on_gc_finished by @qinsoon in #1292
• Fix broken stats gathering code if no. of GCs > MAX_PHASES by @k-sareen in #1295
• Fix contiguous chunk iterator in monotonic PR by @wks in #1299

Full Changelog: v0.30.0...v0.31.0