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GeezerVison is showing github.com — Release 1.16.0 — quality & performance pass by JosunLP · Pull Request #203 · bQuery/bQuery

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JosunLP commented Aug 11, 2026

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Release 1.16.0 — Quality & performance pass

Promotes dev to main for the 1.16.0 minor release. A full audit of the framework's three hot paths — the reactive core, the DOM core, and the view layer — drove measurable speed-ups and surfaced several real correctness bugs, all fixed here. The release also folds in the previously staged follow-up to the 1.15.1 security review, plus a documentation-wide accuracy pass.

No breaking changes. No module status transitions. The only new API is the additive trailing option on watchThrottle.

Performance (benchmarked old vs. new)

Area	Change	Measured effect
reactive	`batch()` keeps the batch open while flushing; transitive updates coalesce, re-queued observers drain in follow-up passes (bounded at 100)	diamond dependencies: 1 effect run per batch instead of 1 per branch
reactive	`Computed` re-validates and notifies subscribers only when the value actually changed (`Object.is`)	unchanged `computed` bool under 20k writes: 20k effect runs → 2
reactive	allocation cuts on signal writes and dependency tracking	writes w/o subscribers ~6× faster; repeated reads ~1.6×; computed chains ~1.7×
core	`replaceWith(string)` sanitizes once per call; `empty()` → `replaceChildren()`; `children()`/`siblings()`/`index()`/`unwrap()`/`css(object)`/`data()` shed per-element allocations	fewer sanitizer runs, HTML parses, and array copies on collection ops
view	per-update work moved to bind time: object-expression parsing, transition resolution, memoized directive parsing, sandbox proxies cached per context; unchanged DOM writes skipped	less garbage and fewer DOM writes per reactive tick, faster `bq-for` reconciles

Correctness fixes

Area	Fix
core	`undelegate()` from a fresh wrapper (the documented usage) was a silent no-op leaking the listener — registry is now module-level, `delegate()` idempotent per (element, event, selector, handler); delegated dispatcher tolerates non-`Element` targets
core	`wrap(element)` over multi-element collections no longer clones previously wrapped elements into later wrappers
view	directives declared before `bq-for` on the same element no longer bind to the discarded template element
view	`bq-once`/`bq-memo`/`bq-init` evaluate untracked — they no longer subscribe the enclosing `bq-for` reconciler
view	`bq-model` no longer resets the caret while typing (skips the write-back when the input already holds the value)
view	children of `bq-html`/`bq-html-safe` are no longer directive-bound (effects kept running against replaced markup)
reactive	nested `batch()` no longer double-executes observers; a throwing `computed` stays dirty and retries instead of serving a stale cache
motion	`onReducedMotionChange` re-binds to the current `window.matchMedia` on subscribe and flushes changes that happened without a `change` event (also fixes two order-dependent motion tests)
store	`deepClone` special-cases only the dangerous `__proto__` key; properties merely named `constructor`/`prototype` clone normally again
view/compiler	rejects legacy leading-zero decimal literals instead of emitting strict-mode `SyntaxError`s

Security (1.15.1 follow-up)

with-scope evaluator hardening closes a residual member-access escape (items.constructor.constructor('…')()) via the shared hasDangerousMemberAccess() guard, applied to both the runtime evaluator and the AOT compiler (#168, #202).

Additive API (backwards-compatible)

watchThrottle(source, cb, interval, { trailing: true }) — delivers the last value of a burst once the interval elapses; default stays leading-edge-only (WatchThrottleOptions, @bquery/bquery/reactive).

Behavioral notes (no opt-out needed)

Effects depending on a computed re-run without a value change now run less often — matching the documented contract. Read the underlying signal directly if you relied on the extra runs.
delegate() no longer stacks duplicate listeners for the same handler tuple.

Documentation accuracy pass

~40 factual errors fixed across the view/reactive/core guides and concepts pages (nonexistent APIs like .set()/cloneDeep/bq-attr removed, bq-memo/bq-error/bq-model described as implemented, broken examples repaired).
20 broken in-site anchors (cookbook/workflows → reactive guide) and the contradicting 1.15.0 release date (now consistently 2026-06-30) fixed.
AI guidance files carry full 1.15.1 + 1.16.0 sections; check:doc-exports now reports 100 % export coverage for all 21 modules.

Release chores

package.json: 1.15.1 → 1.16.0 (the staged 1.15.2 patch was folded into this minor)
CHANGELOG.md: new [1.16.0] section (Added/Changed/Fixed/Security) and TOC entry
Docs: new release-notes/1.16 page, nav + index entries, version-history entries in the affected guides
Dev dependencies: Storybook 10.5.7, typescript-eslint 8.67.0, ESLint 10.8.1, happy-dom 20.11.2, Prettier 3.9.6, Vite 8.2.1

Validation

bun test: 3056 pass / 0 fail (8 new regression tests)
tsc --noEmit (src + component-test config): clean
bun run build (ESM + UMD + types) and bun run docs:build: succeed
check:stability, check:full-bundle, check:ai-guidance, check:doc-exports (21/21 modules at 100 %): pass

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          refactor(tests): improve code readability and formatting in various t…

733ca63

…est files

- Refactored test cases in `ssr-runtime.test.ts` for better readability by aligning parameters and breaking long lines.
- Updated `ssr-stable.test.ts` to enhance clarity by formatting multi-line function calls.
- Cleaned up `storybook.test.ts` by consolidating assertions into single lines.
- Simplified `testing-extensions.test.ts` by streamlining error expectations.
- Enhanced `utils-array-extras.test.ts` and `utils-function-extras.test.ts` for better visual structure.
- Improved `utils-misc-extras.test.ts` and `utils-object-extras.test.ts` by formatting complex assertions.
- Refined `view-1-14.test.ts` and `view-compiler.test.ts` for consistency in line breaks and indentation.
- Added new tests in `view-process-order.test.ts` to cover directive processing order and subscription hygiene.
- Updated `view-stable.test.ts` and `view-transitions.test.ts` for better readability and consistency in test structure.
- Enhanced `view.test.ts` for clarity in handler invocation tests.

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.clinerules
.cursorrules
.github/ISSUE_TEMPLATE/bug-report.yml
.github/ISSUE_TEMPLATE/feature-request.yml
.github/copilot-instructions.md
.github/dependabot.yml
AGENT.md
CHANGELOG.md
README.md
docs/.vitepress/config.ts
docs/concepts/architecture.md
docs/concepts/bundle-and-tree-shaking.md
docs/concepts/reactivity-model.md
docs/concepts/runtimes.md
docs/concepts/security-model.md
docs/contributing/agent-guide.md
docs/contributing/release-process.md
docs/contributing/repo-layout.md
docs/cookbook/debounced-search.md
docs/cookbook/infinite-scroll.md
docs/cookbook/login-form.md
docs/cookbook/mock-fetch-test.md
docs/cookbook/modal-dialog.md
docs/cookbook/notification-toast.md
docs/cookbook/pagination.md
docs/cookbook/persisted-store.md
docs/cookbook/polling.md
docs/cookbook/scroll-reveal.md
docs/cookbook/sse-stream.md
docs/cookbook/ssr-deploy.md
docs/cookbook/trace-signal.md
docs/cookbook/websocket-reconnect.md
docs/glossary.md
docs/guide/api-core.md
docs/guide/best-practices.md
docs/guide/components.md
docs/guide/concurrency.md
docs/guide/devtools.md
docs/guide/file-routing.md
docs/guide/forms.md
docs/guide/motion.md
docs/guide/reactive.md
docs/guide/router.md
docs/guide/server.md
docs/guide/ssr.md
docs/guide/store.md
docs/guide/tutorial.md
docs/guide/view.md
docs/index.md
docs/release-notes/1.14.md
docs/release-notes/1.15.md
docs/release-notes/1.16.md
docs/release-notes/index.md
docs/workflows/backend-api.md
docs/workflows/component-library.md
docs/workflows/forms-validation.md
docs/workflows/index.md
docs/workflows/off-main-thread.md
docs/workflows/sortable-keyboard.md
docs/workflows/streaming-ssr.md
docs/workflows/todo-spa.md
eslint.config.js
extension/panel.html
llms.txt
package.json
scripts/check-doc-exports.mjs
scripts/check-full-bundle.mjs
scripts/check-stability-matrix.mjs
src/a11y/keyboard-signals.ts
src/a11y/live-region.ts
src/a11y/skip-link.ts
src/component/async.ts
src/component/css.ts
src/component/events.ts
src/component/index.ts
src/component/inject.ts
src/component/keyed-list.ts
src/concurrency/high-level.ts
src/concurrency/internal.ts
src/concurrency/module-worker.ts
src/concurrency/types.ts
src/core/collection.ts
src/core/element.ts
src/core/shared.ts
src/core/utils/array.ts
src/core/utils/function.ts
src/core/utils/misc.ts
src/core/utils/object.ts
src/core/utils/string.ts
src/core/utils/type-guards.ts
src/devtools/bridge.ts
src/dnd/draggable.ts
src/dnd/droppable.ts
src/dnd/reactive.ts
src/dnd/sortable.ts
src/forms/action.ts
src/forms/bind.ts
src/forms/create-form.ts
src/forms/index.ts
src/forms/schema.ts
src/forms/ssr.ts
src/forms/validators.ts
src/full.ts
src/i18n/formatting-extras.ts
src/media/browser-state.ts
src/media/clipboard.ts
src/media/dom-targets.ts
src/media/observers.ts
src/motion/animate.ts
src/motion/easing.ts
src/motion/index.ts
src/motion/reduced-motion.ts
src/motion/scroll-progress.ts
src/motion/stagger.ts
src/motion/timeline.ts
src/motion/tween.ts
src/plugin/index.ts
src/reactive/computed.ts
src/reactive/core.ts
src/reactive/effect.ts
src/reactive/index.ts
src/reactive/internals.ts
src/reactive/signal.ts
src/reactive/watch.ts
src/router/file-routes/routes.ts
src/router/index.ts
src/router/match.ts
src/router/router.ts
src/router/use-navigation.ts
src/router/utils.ts
src/server/file-routes.ts
src/ssr/hydration.ts
src/ssr/render-async.ts
src/ssr/renderer.ts
src/ssr/resumable-boundary.ts
src/storybook/helpers.ts
src/storybook/story-html.ts
src/storybook/story-svg.ts
src/testing/testing.ts
src/view/directives/aria.ts
src/view/directives/bind.ts
src/view/directives/class.ts
src/view/directives/for.ts
src/view/directives/html.ts
src/view/directives/if.ts
src/view/directives/lightweight.ts
src/view/directives/model.ts
src/view/directives/on-modifiers.ts
src/view/directives/show.ts
src/view/directives/style.ts
src/view/directives/text.ts
src/view/directives/transitions.ts
src/view/evaluate.ts
src/view/mount.ts
src/view/process.ts
tests/a11y-1-14.test.ts
tests/component-extensions.test.ts
tests/component.test.ts
tests/computed-revalidation.test.ts
tests/concurrency-stable.test.ts
tests/core.test.ts
tests/devtools-extensions.test.ts
tests/dnd.test.ts
tests/forms-actions.test.ts
tests/forms-extensions.test.ts
tests/motion-effects.test.ts
tests/motion-timeline-extras.test.ts
tests/motion.test.ts
tests/plugin-extensions.test.ts
tests/repro-readd.test.ts
tests/server-file-routes.test.ts
tests/server.test.ts
tests/signal.test.ts
tests/ssr-runtime.test.ts
tests/ssr-stable.test.ts
tests/storybook.test.ts
tests/testing-extensions.test.ts
tests/utils-array-extras.test.ts
tests/utils-function-extras.test.ts
tests/utils-misc-extras.test.ts
tests/utils-object-extras.test.ts
tests/view-1-14.test.ts
tests/view-compiler.test.ts
tests/view-process-order.test.ts
tests/view-stable.test.ts
tests/view-transitions.test.ts
tests/view.test.ts

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github-actions Bot added core

Changes to the core module

reactive

Changes to the reactive module

component

Changes to the component module

motion

Changes to the motion module

router

Changes to the router module

view

Changes to the view module

docs

Changes to the documentation

tests

Chenges to the tests

build

Changes to the build and meta files

github

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forms

Changes to the forms module

i18n

Changes to the i18n module

a11y

Changes to the a11y module

dnd

Changes to the dnd module

media

Changes to the media module

plugin

Changes to the plugin module

devtools

Changes to the devtools module

testing

Changes to the testing module

ssr

Changes to the ssr module

storybook

Changes to the storybook module

concurrency server labels

Aug 11, 2026

JosunLP self-assigned this

Aug 11, 2026

JosunLP and others added 2 commits

August 11, 2026 13:24


          Merge branch 'main' into dev

b65a2ad

Signed-off-by: Jonas Pfalzgraf <[email protected]>


          fix(motion): establish media-query subscription before flushing on su…

44ad19e

…bscribe

onReducedMotionChange flushed pending value changes before ensuring the
matchMedia subscription existed. When a baseline (lastDispatchedValue) was
left behind by setReducedMotion() without an active subscription — a state
CI's test-file ordering produced — the flush issued a one-off matchMedia
call and ensure() then subscribed again, so a freshly mocked matchMedia saw
two calls instead of one. Establish the subscription first so evaluation
reads the cached media query; add a deterministic regression test for the
baseline-without-subscription state.

Co-Authored-By: Claude Fable 5 <[email protected]>

JosunLP added this to the 1.16.0 milestone

Aug 11, 2026

JosunLP commented

Aug 11, 2026

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Code review (workflow-assisted, high effort): 8 findings — 5 confirmed against the code, 3 plausible. Ranked by severity in the inline comments. The two computed.ts issues can permanently freeze subscribers and look like release blockers for 1.16.0.

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          fix(review): address PR #203 review findings

36999e9

Correctness:
- computed: markDirty no longer early-returns on an already-dirty computed.
  A compute that threw (or a revalidate dropped by a flush-pass overflow)
  left dirty=true with no pending revalidate, so every later dependency
  change was ignored and subscribers stayed frozen.
- computed: rebase the notified-value baseline when a subscriber joins a
  previously empty set, so a change made while nobody was subscribed
  followed by a revert is no longer swallowed by the equality check. Adds a
  stale-baseline guard for readers that observe an un-notified value.
- view/process: restore the children snapshot in processChildren. The live
  nextElementSibling walk silently dropped every remaining sibling once a
  directive handler removed the node it was standing on.
- view/text: only skip the write when the element already is exactly that
  single text node. Comparing el.textContent alone left server-rendered
  markup (<b>Hel</b>lo) in place instead of flattening it.
- view/if,show: resolve transitions inside the effect again so attributes
  added or changed after mount take effect (bq-if resolves per flip).
- core/shared: count delegated registrations so one owner's undelegate()
  cannot detach a delegation another owner still holds.

Efficiency:
- view/process: bound the parseDirective memo like the expression caches so
  generated attribute names cannot grow it without eviction.

Co-Authored-By: Claude Opus 5 <[email protected]>


          fix(tests): avoid Array.prototype.at in computed revalidation test

c612ef4

tsconfig.component-test.json targets a lib without es2022 array methods,
so `.at(-1)` failed the test type-check in CI.

Co-Authored-By: Claude Opus 5 <[email protected]>

JosunLP merged commit 6eb76be into main

Aug 11, 2026

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JosunLP commented Aug 11, 2026

Release 1.16.0 — Quality & performance pass

Performance (benchmarked old vs. new)

Correctness fixes

Security (1.15.1 follow-up)

Additive API (backwards-compatible)

Behavioral notes (no opt-out needed)

Documentation accuracy pass

Release chores

Validation

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coderabbitai Bot commented Aug 11, 2026 •

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