release: 0.2.5862 bounded bbtree dictionaries by default

CHANGELOG.md

@@ -2,6 +2,12 @@
 
 ## Unreleased
 
+## 0.2.5862 - 2026-10-27
+
+- Enable the Zig bbtree inline-key dictionary by default for warm mmap word indexes. Keep postings zero-copy and preserve exact/prefix results, ranking, hosted fallback, and ANN candidate breadth (#772).
+- Bound accelerator memory to one exact-size slab, at most 8 MiB per mmap word index. Over-budget dictionaries and allocation failures retain complete binary search; promotion frees the slab before unmapping.
+- Include the isolated macOS watcher CPU fixes already integrated in 0.2.5861 via #758/#771, without importing unrelated changes from #750.
+
 ## 0.2.5861 - 2026-10-26
 
 - Use recursive macOS events on local APFS/HFS volumes, with at most 64 content probes every two seconds and directory audits every 60 seconds, reducing idle watcher CPU (#756, #758). Fallback filesystems retain conservative polling. Each MCP client still owns a watcher.

build.zig

@@ -84,6 +84,20 @@ pub fn build(b: *std.Build) void {
     const run_step = b.step("run", "Run codedb daemon");
     run_step.dependOn(&run_cmd.step);
 
+    // Opt-in, local-only warm mmap dictionary A/B experiment.
+    const bb_bench = b.addExecutable(.{
+        .name = "bench-bbtree",
+        .root_module = b.createModule(.{
+            .root_source_file = b.path("src/bench_bbtree.zig"),
+            .target = target,
+            .optimize = optimize,
+            .link_libc = true,
+        }),
+    });
+    const bb_run = b.addRunArtifact(bb_bench);
+    bb_run.addPassthruArgs();
+    b.step("bench-bbtree", "Compare bbtree and binary search on warm mmap words").dependOn(&bb_run.step);
+
     // ── Tests (split into independent binaries for faster compilation) ──
     const test_filter = b.option([]const u8, "test-filter", "Only run tests whose name contains this substring");
     const test_step = b.step("test", "Run all tests");
@@ -92,6 +106,8 @@ pub fn build(b: *std.Build) void {
         .{ .name = "test-core", .path = "src/test_core.zig", .needs_nanoregex = false },
         .{ .name = "test-explore", .path = "src/test_explore.zig", .needs_nanoregex = true },
         .{ .name = "test-index", .path = "src/test_index.zig", .needs_nanoregex = true },
+        .{ .name = "test-bbtree", .path = "src/test_bbtree.zig", .needs_nanoregex = false },
+        .{ .name = "test-bbtree-memory", .path = "src/test_bbtree_memory.zig", .needs_nanoregex = false },
         .{ .name = "test-watcher", .path = "src/watcher.zig", .needs_nanoregex = true },
         .{ .name = "test-parser", .path = "src/test_parser.zig", .needs_nanoregex = true },
         .{ .name = "test-search", .path = "src/test_search.zig", .needs_nanoregex = true },

build.zig.zon

@@ -1,7 +1,7 @@
 .{
     .name = .codedb2,
     .fingerprint = 0x6e18d96ca2a31757,
-    .version = "0.2.5861",
+    .version = "0.2.5862",
     .minimum_zig_version = "0.17.0-dev.813+2153f8143",
     .dependencies = .{
         .nanoregex = .{