v2.11.0

✨ Features

• add a while special form
• add times and fold-while
• WSAPoll event loop for Windows
• optional deadline on .ipc.send; close the connection on expiry (#589) (#658)
• add native Parquet queries and native imports (#657)
• publish splayed replacements atomically (#649)
• export the build's commit as ray_git_commit() (#666)

🐛 Bug fixes

• bound the tied groups the radix top-N selection keeps
• validate launcher and timeit integer arguments
• reject a flag as another flag's value, and unknown options
• release the input table of window, sort and limit unconditionally
• the reduction case owns its input too
• Winsock errno mapping, exclusive bind and IPC on Windows
• Windows platform layer (file mapping, pools, crash report, paths)
• REPL, profiler and system builtins build and work on Windows
• readable REPL prompt and CPU name in the banner on Windows
• render i64 at full width, not through 32-bit long
• format the banner with snprintf instead of macro string splicing
• hand workers their freed blocks back at the end of every dispatch (#621)
• reject trailing payload bytes (#622)
• a projection sees the projections before it (#620)
• report arity errors for extra arguments (#616)
• admit the typed kernel for text columns, which it never reached (#607)
• mapped index regions — bounds-checked children, never released on drop
• zone min/max tell all-null from the non-null counts; empty tables keep the planner
• reject arguments to gc (#615)
• a STR view keeps only the bytes it points at (#631)
• reject arguments to purge (#638)
• reject invalid persisted graph ids (#642)
• reject arguments to roll (#639)
• hash int cells through f64 when a set meets a float probe (#646)
• admit the typed kernel unless both sides carry a null (#644)
• integer mean divides the exact 128-bit sum; mapped index tail unmapped after drop (#648)
• reject arguments to close (#637)
• never do work or error handling inside assert(); test the suite with NDEBUG (#653)
• ray_execute and index attach never return NULL (#655)
• detect half-open outbound connections with TCP keepalive (#589) (#656)
• reject graph handles (#651)
• write private staging leaves without the live-table writer (#667)
• unlink a direct block's spill file once it is mapped (#665)
• vector conditions, mixed branch types and one-element scalars (#668)
• print every column and row of a table (#659)
• keep a temporal column's type through a compiled xbar (#669) (#670)
• literals and scalars read as columns, scalar where:, and update where: new columns (#676)
• keep SYM columns typed through the eval fallback; eval fallback for update new columns and update by: (#690)
• int-vs-float compare, compiled not/if kernels, fallback aggregates, cgroup RAM budget (#695)
• temporal if null, scalar selects under where:/take:, non-BOOL where: predicates (#696)
• mixed temporal compares, narrow-lane casts, fallback not/cast, count literals (#697)
• journal single writer, failed first write cleanup, parted partition column, renameat2, narrow nil? (#699)
• a failed first write cleans a table directory that was there before it (#702)
• ray_journal_open releases the lock when open_append rejects the base (#701)
• preserve layer topology during build and load (#680)
• a select of aggregates and scalars over them is one row (#706)
• group by a computed key beside distinct aggregates and row expressions (#708)

⚡ Performance

• skip per-cell key null tests on provably null-free columns
• wake only the workers a dispatch can keep busy
• one column kernel for the direct builtin and the executor, one row pass (#623)
• shared-node memo, STR descriptor views, fused top-k on nullable like, bulk derived key, parallel dense grouping (#626)
• whole-table count/min/max/sum/avg from chunk-zone metadata
• avoid rewriting copied text nulls during concat (#641)
• 32 registers per fused expression; nulls produced mid-program, narrow scratch (#636)
• filtered positional take stops early; sort by an unprojected column (#634)
• partitioned dense accumulate; derived-key grouping over the column's distinct values (#633)
• parallel splayed load, batched symfile interning, parallel hash index build (#632)
• fused top-k prunes chunks by zone extrema and visits the best chunks first (#643)
• unordered take aggregates only the groups it returns (#661)
• exact-offset radix grouping, per-value programs for derived string keys, parallel STR if (#682)
• review follow-ups to #682 (radix chunks on every worker, no second branch evaluation in STR if) (#683)
• build splayed column indexes while streaming, no second pass (#704)
• per-worker ticket ranges with stealing, private domains for derived keys, table-stack grouping (#705)
• per-group slices from the selection, histograms sized by the workers (#709)

📚 Documentation

• Windows build instructions and platform status
• merge master back into dev after each release

🔧 Maintenance & internal

• test(lang): pin the refcount of a table across window, sort and limit queries
• build: Windows (MSYS2 CLANG64/MINGW64) toolchain in the Makefile
• test: run the suite on Windows
• bench: build the micro-benchmarks on Windows, record a Windows/Linux check
• bench: record the recent perf benches on Windows vs Linux
• test(regress): drop the 24 GB til from the i64 width probe
• v2.9.1 (#625) (#629)
• test(store): portable in-place sed in splayed_zone_aggs
• test(agg): pin the LLC in dense_cache_bound so the route is runner-independent (#647)
• ci(cppcheck): analyse one pinned configuration instead of up to twelve (#654)
• test: isolate load_home from inherited RAYFORCE_HOME (#671)

Full changelog: v2.10.0...v2.11.0