# gstack 1.63.0.0 — Everything gstack sends off your machine now leaves a receipt you can read.

- Product: gstack (https://whatsnew.fyi/product/gstack)
- Vendor: gstack
- Date: 2026-08-13
- Version: 1.63.0.0
- Original notes: https://raw.githubusercontent.com/garrytan/gstack/main/CHANGELOG.md
- Permalink: https://whatsnew.fyi/product/gstack/releases/1.63.0.0

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **added** — gstack-egress tool to read, list, and verify egress receipt ledger
- **added** — gstack-context-bill tool for offline token bill-of-materials
- **added** — New POST /extension-token endpoint for sidebar token bootstrap
- **added** — Hermetic PTY test children can register shipped skills
- **changed** — gstack-owned off-machine sinks with a receipt now enforced
- **changed** — Paid gate runner isolation with one process per file and group-SIGKILL on stall
- **changed** — Discovery catalog budget now measured and gated with ratchet protocol
- **changed** — Hash-chained egress receipts for sensitive sinks (brain-sync, memory-ingest, gbrain-sync, telemetry, tunnels)
- **changed** — Sharded paid-gate runner for test isolation
- **changed** — Discovery-surface cost gated with self-service ratchet protocol
- **changed** — Shared modules replace duplicated test logic
- **changed** — External-service E2E tests declared periodic-tier
- **changed** — PTY test runner parses AskUserQuestion prompts that reflow onto single line
- **fixed** — Eval harness no longer compares runs against their own in-progress accumulator
- **fixed** — Browser /health endpoint no longer serves root auth token
- **fixed** — Eval harness auto-comparison fixed to find latest completed same-tier run
- **fixed** — Browser /health token leak fixed

gstack-owned off-machine sinks with a receipt now enforced
Eval harness no longer compares runs against their own in-progress accumulator
Paid gate runner isolation with one process per file and group-SIGKILL on stall
Discovery catalog budget now measured and gated with ratchet protocol
Browser /health endpoint no longer serves root auth token
Hash-chained egress receipts for sensitive sinks (brain-sync, memory-ingest, gbrain-sync, telemetry, tunnels)
Sharded paid-gate runner for test isolation
gstack-egress tool to read, list, verify egress receipt ledger
gstack-context-bill tool for offline token bill-of-materials
New POST /extension-token endpoint for sidebar token bootstrap
Hermetic PTY test children can register shipped skills
Discovery-surface cost gated with self-service ratchet protocol
Eval harness auto-comparison fixed to find latest completed same-tier run
Browser /health token leak fixed
Shared modules replace duplicated test logic
External-service E2E tests declared periodic-tier
PTY test runner parses AskUserQuestion prompts that reflow onto single line