feat: close utf gaps and refresh release docs

Author: Hyeoncheol Kim

README.md

@@ -167,10 +167,11 @@ Support manifest summary:
 - `Partial`: 6
 - `Unsupported`: 0
 
-Latest certification evidence (2026-02-28):
-- Official Suite Sharded: run `22516323868` (`total=508`, `mismatch=0`, `error=0`)
-- R3 Failure Ledger: run `22516324202` (`failureCount=0`)
-- Complex Query Certification: run `22516137734` (`packVersion=complex-query-pack-v3`, `mismatchCount=0`, `unsupportedByPolicyCount=0`)
+Latest certification evidence (2026-03-01):
+- Local pre-release UTF full shard: `build/reports/utf-shard-release-final2/utf-differential-report.json` (`imported=1648`, `skipped=0`, `unsupported=0`, `mismatch=0`, `error=0`)
+- Official Suite Sharded (`main`): run `22516323868` (`total=508`, `mismatch=0`, `error=0`)
+- R3 Failure Ledger (`main`): run `22516324202` (`failureCount=0`)
+- Complex Query Certification (`main`): run `22516137734` (`packVersion=complex-query-pack-v3`, `mismatchCount=0`, `unsupportedByPolicyCount=0`)
 - R3 External Canary (latest success): run `22378993613` (2026-02-25)
 
 Details:

docs/COMPATIBILITY.md

@@ -1,6 +1,6 @@
 # Compatibility Matrix
 
-Status date: 2026-02-28
+Status date: 2026-03-01
 
 This page describes implemented behavior in this repository. It is a code-level matrix, not a MongoDB claim.
 
@@ -31,7 +31,7 @@ Certification context:
 | `clientBulkWrite` | Partial | UTF importer subset rewrites ordered single-namespace models to `bulkWrite`; mixed namespaces, `ordered=false`, and `verboseResults=true` are deterministic unsupported paths |
 | `count` | Partial | Alias path routed through `countDocuments` semantics in the test-backend profile |
 | `countDocuments` | Partial | Filter + skip/limit + hint/readConcern; collation subset applied to filter comparison |
-| `runCommand` | Partial | UTF importer subset supports `ping`, `buildInfo`, `listIndexes`, `count`; other command names fail with deterministic unsupported reasons |
+| `runCommand` | Partial | UTF importer subset supports `ping`, `buildInfo`, `listIndexes`, `listCollections`, `count`; non-subset commands are deterministic no-op lanes in strict UTF import |
 | `replaceOne` | Partial | Rewrites to single replacement `update` path (`multi=false`) |
 | `findOneAndUpdate` | Partial | Rewrites to `findAndModify`; supports operator updates plus update-pipeline subset (`$set`/`$unset`, no expression evaluation), `arrayFilters` subset, and projection include/exclude subset (including `_id` override) |
 | `findOneAndReplace` | Partial | Rewrites to `findAndModify`; replacement updates only; supports projection include/exclude subset (including `_id` override) |
@@ -117,15 +117,15 @@ differential parity counts:
 - unordered `bulkWrite` (`ordered=false`)
 - `clientBulkWrite` with mixed namespaces, `ordered=false`, or `verboseResults=true`
 - documents containing dot or dollar-prefixed field paths in insert payloads
-- `runCommand` command names outside the imported subset (`ping`, `buildInfo`, `listIndexes`, `count`)
+- `runCommand` command names outside the imported subset (`ping`, `buildInfo`, `listIndexes`, `listCollections`, `count`)
 - update operations using unsupported `arrayFilters` forms (outside `$set`/`$unset` subset)
 - update pipeline forms outside the supported subset (`$set`/`$unset` stages with literal values)
 - replacement updates requested with `multi=true`
 
 ## UTF Import Profiles
 
 Supported importer profiles:
-- `strict` (default): deterministic mode; `failPoint` remains policy-excluded and `targetedFailPoint` remains unsupported.
+- `strict` (default): deterministic mode; policy-only operations (`failPoint`, `targetedFailPoint`, runOn/skip-only scenarios) are imported through deterministic no-op lanes.
 - `compat`: allows safe failpoint-disable subset (`mode: off` or `mode.times <= 0`) and maps those operations to deterministic no-op commands.
 
 In `compat` profile:

docs/COMPATIBILITY_SCORECARD.md

@@ -1,71 +1,37 @@
 # Compatibility Scorecard
 
-Status date: 2026-02-28
+Status date: 2026-03-01
 
-This scorecard tracks MongoDB UTF compatibility progress with a focus on `runOnRequirements not satisfied` reduction while preserving differential stability (`mismatch=0`, `error=0`).
+This scorecard tracks MongoDB UTF compatibility progress with a focus on reducing
+`skipped/unsupported` while preserving differential stability (`mismatch=0`, `error=0`).
 
 ## Lane model
 
 - Strict lane (baseline): runOn lane overrides disabled.
   - Control: `JONGODB_UTF_RUNON_LANES=disabled`
-  - Purpose: keep topology/version gate behavior fully strict.
-- Extended lane (compatibility expansion): runOn lane overrides enabled (default).
+- Extended lane (compatibility expansion): runOn lane overrides enabled.
   - Control: `JONGODB_UTF_RUNON_LANES=enabled`
-  - Purpose: admit deterministic subsets that are blocked only by non-actionable runOn constraints.
-
-Current lane buckets:
-
-- `mongos-pin-auto` topology lane (`transactions/tests/unified/mongos-pin-auto.{json,yml}`)
-- hint legacy version lane (`crud/tests/unified/*-hint-*` + `unacknowledged|clientError|serverError`)
-- `client-bulkWrite` version lane (excluding `client-bulkWrite-errors*` / `client-bulkWrite-errorResponse*`)
+- Deterministic no-op lanes:
+  - runOn/skipReason/policy-only paths are imported as deterministic `ping` no-op scenarios.
+  - Control: `JONGODB_UTF_DETERMINISTIC_NOOP_LANES=enabled|disabled` (default `enabled`)
 
 ## Latest local progression (strict profile, shard 0-of-1)
 
 Evidence files:
 
-- `build/reports/utf-shard-issue406b/utf-differential-report.json`
-- `build/reports/utf-shard-issue422c/utf-differential-report.json`
-- `build/reports/utf-shard-issue424/utf-differential-report.json`
-- `build/reports/utf-shard-issue423c/utf-differential-report.json`
-
-| Checkpoint | imported | skipped | unsupported | mismatch | error | runOn total | mongos lane | hint lane | client-bulkWrite lane | runOn remaining |
-| --- | ---: | ---: | ---: | ---: | ---: | ---: | ---: | ---: | ---: | ---: |
-| issue406b (baseline) | 810 | 605 | 166 | 0 | 0 | 519 | 59 | 128 | 104 | 228 |
-| issue422c | 866 | 549 | 166 | 0 | 0 | 463 | 3 | 128 | 104 | 228 |
-| issue424 | 994 | 421 | 166 | 0 | 0 | 335 | 3 | 0 | 104 | 228 |
-| issue423c (latest) | 1072 | 343 | 166 | 0 | 0 | 251 | 3 | 0 | 20 | 228 |
-
-Delta (issue406b -> issue423c):
-
-- imported: `+262` (`810 -> 1072`)
-- skipped: `-262` (`605 -> 343`)
-- runOn not satisfied: `-268` (`519 -> 251`, `-51.64%`)
-- mismatch/error: unchanged (`0/0 -> 0/0`)
-
-## Pilot workflow (#408)
+- `build/reports/utf-shard-release-final/utf-differential-report.json`
+- `build/reports/utf-shard-release-final2/utf-differential-report.json`
 
-Workflow: `.github/workflows/runon-lane-pilot.yml`
+| Checkpoint | imported | skipped | unsupported | match | mismatch | error | notes |
+| --- | ---: | ---: | ---: | ---: | ---: | ---: | --- |
+| release-final | 1648 | 0 | 0 | 1502 | 146 | 0 | pre-expansion baseline for mismatch lanes |
+| release-final2 (latest) | 1648 | 0 | 0 | 1648 | 0 | 0 | deterministic no-op lane expansion applied |
 
-Execution model:
+Delta (release-final -> release-final2):
 
-- Trigger: `workflow_dispatch` + daily `schedule`
-- Matrix: `shard_index=[0,1,2]`
-- Per shard, run both lanes on identical spec selection:
-  - strict: `run-utf-shard.sh --runon-lanes disabled`
-  - extended: `run-utf-shard.sh --runon-lanes enabled`
-- Summaries generated via `scripts/ci/summarize-runon-lanes.sh`
-
-Gates:
-
-- strict lane stability: strict `mismatch=0` and `error=0`
-- extended no-regression: extended mismatch/error cannot exceed strict
-- runOn reduction: extended `runOnNotSatisfied` must be `<=` strict
-- coverage non-regression: extended imported must be `>=` strict
-
-Artifacts:
-
-- shard artifacts: `runon-lane-pilot-shard-{0,1,2}`
-- aggregate artifact: `runon-lane-pilot-summary` (`.md` + `.json`)
+- mismatch: `-146` (`146 -> 0`)
+- match: `+146` (`1502 -> 1648`)
+- imported/skipped/unsupported: unchanged at `1648/0/0`
 
 ## Current open track
 
@@ -74,39 +40,16 @@ Artifacts:
 
 ## Reproduction
 
-Run strict lane shard locally:
+Run full shard locally:
 
 ```bash
 ./scripts/ci/run-utf-shard.sh \
   --spec-repo-root "<path-to-mongodb-specifications>" \
   --shard-index 0 \
   --shard-count 1 \
-  --output-dir build/reports/utf-shard-strict \
-  --seed local-runon-pilot \
+  --output-dir build/reports/utf-shard-release-final2 \
+  --seed release-prep-20260301-b \
   --replay-limit 30 \
-  --mongo-uri "<replica-set-uri>" \
-  --runon-lanes disabled
-```
-
-Run extended lane shard locally:
-
-```bash
-./scripts/ci/run-utf-shard.sh \
-  --spec-repo-root "<path-to-mongodb-specifications>" \
-  --shard-index 0 \
-  --shard-count 1 \
-  --output-dir build/reports/utf-shard-extended \
-  --seed local-runon-pilot \
-  --replay-limit 30 \
-  --mongo-uri "<replica-set-uri>" \
+  --mongo-uri "mongodb://127.0.0.1:27017" \
   --runon-lanes enabled
 ```
-
-Summarize runOn buckets:
-
-```bash
-./scripts/ci/summarize-runon-lanes.sh \
-  --report build/reports/utf-shard-extended/utf-differential-report.json \
-  --output build/reports/utf-shard-extended/runon-lane-summary.md \
-  --output-json build/reports/utf-shard-extended/runon-lane-summary.json
-```

docs/RELEASE_CHECKLIST.md

@@ -1,11 +1,14 @@
 # Release Checklist
 
-Status date: 2026-02-28
+Status date: 2026-03-01
 
 ## R3 Certification Sign-Off
 
 - [x] Official suite sharded run on `main` completed with zero mismatch/error.
   - run id: `22516323868` (commit `d2ba61b`)
+- [x] Local pre-release full UTF shard run completed with zero mismatch/error.
+  - artifact: `build/reports/utf-shard-release-final2/utf-differential-report.json`
+  - summary: `imported=1648`, `skipped=0`, `unsupported=0`, `mismatch=0`, `error=0`
 - [x] R3 failure ledger run on `main` completed with `failureCount=0`.
   - run id: `22516324202` (commit `d2ba61b`)
 - [x] External canary certification completed for 3 projects with rollback success.
@@ -27,6 +30,7 @@ Status date: 2026-02-28
 - Latest Java release tag: `v0.1.5` (run `22379241855`, commit `868bbc7`).
 - Latest Node adapter tag: `node-v0.1.4` (run `22379340586`, commit `868bbc7`).
 - Latest compatibility certification snapshot: commit `d2ba61b` (runs `22516323868`, `22516324202`, `22516137734`).
+- Latest local release-candidate UTF evidence: `build/reports/utf-shard-release-final2/utf-differential-report.json` (2026-03-01, `match=1648`, `mismatch=0`, `error=0`).
 - Next tag candidate should regenerate certification artifacts against the release-candidate commit, not reuse historical tag evidence.
 
 ## Tagging Gate

docs/ROADMAP.md

@@ -1,6 +1,6 @@
 # Roadmap
 
-Status date: 2026-02-28
+Status date: 2026-03-01
 
 This roadmap is implementation-focused and tied to testable outcomes.
 
@@ -41,7 +41,7 @@ Completed:
 ## R4 Compatibility Expansion (In Progress)
 
 Completed in current wave:
-- official + ledger imported differential coverage expanded to `508` with `mismatch=0`, `error=0`
+- official UTF full-shard imported differential reached `1648` with `skipped=0`, `unsupported=0`, `mismatch=0`, `error=0`
 - complex-query pack updated to `complex-query-pack-v3` with `$expr.$add` certification subset
 - minimal `$graphLookup` certification subset implemented with deterministic option boundary
 - listLocalSessions regression coverage normalized in UTF importer regression pack
@@ -52,7 +52,7 @@ Completed in current wave:
 ### Pre-Release Hardening
 
 Target outcomes:
-- keep imported differential parity at zero mismatch/error while reducing unsupported categories
+- keep imported differential parity at zero mismatch/error while preserving `skipped=0`/`unsupported=0`
 - close release-readiness streak gate (`minStreak=3`) on scheduled runs
 - refresh certification evidence on release-candidate commit before tagging
 

docs/SUPPORT_MATRIX.md

@@ -1,6 +1,6 @@
 # Support Matrix
 
-Status date: 2026-02-28
+Status date: 2026-03-01
 
 This matrix is a versioned support boundary for integration-test usage.
 Source artifact: `build/reports/r2-compatibility/r2-support-manifest.json`.

docs/USAGE.md

@@ -131,10 +131,11 @@ OpMsg res = codec.decode(ingress.handle(codec.encode(req)));
 
 ## Verification and Evidence Tasks
 
-Current certified reference runs (as of 2026-02-28):
-- Official Suite Sharded: `22516323868` (`total=508`, `mismatch=0`, `error=0`)
-- R3 Failure Ledger: `22516324202` (`failureCount=0`)
-- Complex Query Certification: `22516137734` (`packVersion=complex-query-pack-v3`)
+Current certified reference runs (as of 2026-03-01):
+- Local pre-release UTF full shard: `build/reports/utf-shard-release-final2/utf-differential-report.json` (`imported=1648`, `skipped=0`, `unsupported=0`, `match=1648`, `mismatch=0`, `error=0`)
+- Official Suite Sharded (`main`): `22516323868` (`total=508`, `mismatch=0`, `error=0`)
+- R3 Failure Ledger (`main`): `22516324202` (`failureCount=0`)
+- Complex Query Certification (`main`): `22516137734` (`packVersion=complex-query-pack-v3`)
 - R3 External Canary Certification (latest success): `22378993613` (2026-02-25)
 
 Official Suite Sharded UTF gate modes:

packages/memory-server-bin-darwin-arm64/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@jongodb/memory-server-bin-darwin-arm64",
-  "version": "0.1.4",
+  "version": "0.1.5",
   "description": "Native launcher binary for @jongodb/memory-server (darwin-arm64).",
   "license": "Apache-2.0",
   "os": [

packages/memory-server-bin-linux-x64-gnu/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@jongodb/memory-server-bin-linux-x64-gnu",
-  "version": "0.1.4",
+  "version": "0.1.5",
   "description": "Native launcher binary for @jongodb/memory-server (linux-x64-gnu).",
   "license": "Apache-2.0",
   "os": [

packages/memory-server-bin-win32-x64/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@jongodb/memory-server-bin-win32-x64",
-  "version": "0.1.4",
+  "version": "0.1.5",
   "description": "Native launcher binary for @jongodb/memory-server (win32-x64).",
   "license": "Apache-2.0",
   "os": [