<p align="center"><strong>English</strong> | <a href="CHANGELOG.zh-CN.md">简体中文</a></p>

# Update history

[Back to homepage](README.md)

Earlier entries follow material dates, backfilled at the repository launch on **2026-10-10**. These dates describe existing material, rather than earlier GitHub publication. Counts refer to unique entries linked to each issue in the structured catalogs, not first-time additions. Older digests without catalog entries are counted as issues only. Missing dates have no invented activity.

## Milestones

- 📚 **2026-10-12** — [SelfRef Library](https://www.selfref.org/agents/curated.html) launched: search across 2 collections, with 6 bilingual guides and 2 Skill downloads.

- 🧭 **2026-10-12** — [Three core guides and Agent reading entry points](agent-index.md), with complete English / Chinese versions and a [public reading site](https://ppchanning.github.io/ai4science-observatory/).

- 🚀 **2026-10-10** — [Launched](https://github.com/ppchanning/ai4science-observatory/commit/551b5b6) with [28 reading issues](digests/README.md) and [11 CSV datasets](data/README.md); added [English / Chinese homepages](README.zh-CN.md) and [update history](CHANGELOG.md).

## Publication updates

- **2026-10-22** — Added [12 news events](digests/ai4science/2026/2026-10-22.md) and [5 research resources](digests/scientific-computer-use/2026/2026-10-22.md) in 2 issues; [revised 1 company record](data/industry/public-company-initiatives.csv). Recovery evidence, scientific workflows and mathematical understanding. No paper/news revisions, returning appearances or backfilled issues.
- **2026-10-21** — Added [17 news events in 1 issue](digests/ai4science/2026/2026-10-21.md), revised 3 historical news explanations, and [revised 1 business record](data/README.md). Measurement constraints, experimental feedback and mathematical research; collaboration milestones retain their conditions. No new paper issues, paper revisions, returning news or backfilled issues.

- **2026-10-20** — Added [13 news events](digests/ai4science/2026/2026-10-20.md) and [5 research resources](digests/scientific-computer-use/2026/2026-10-20.md) in 2 issues; added [1 company and 1 funding event, and revised 1 business record](data/README.md). Physical feedback, interface robustness and mathematical responsibility. No paper revisions, returning appearances or backfilled issues.

- **2026-10-19** — Added [8 news events](digests/ai4science/2026/2026-10-19.md) and [5 research resources](digests/scientific-computer-use/2026/2026-10-19.md) in 2 issues; corrected 1 existing paper record in 2 CSVs. Crystal representations, scientific verification and remote astronomy.

- **2026-10-18** — Added [7 news entries](digests/ai4science/2026/2026-10-18.md) and [5 research resources](digests/scientific-computer-use/2026/2026-10-18.md) in 2 issues; updated 1 returning news event and [1 historical funding record](data/README.md). Instrument feedback, software control and proof interpretation. No paper revisions or backfilled issues; the returning news event is counted once as a revision, not a new entry.

- **2026-10-17** — Added [14 news events](digests/ai4science/2026/2026-10-17.md) and [4 papers](digests/scientific-computer-use/2026/2026-10-17.md) in 2 issues; [revised 1 historical funding record](data/README.md) and merged [1 historical duplicate news record](digests/ai4science/2026/2026-10-05.md). Quantum instruments, scientific closure and the limits of generated evidence. No paper revisions or current returning appearances or backfilled issues.

- **2026-10-16** — Added [14 news events](digests/ai4science/2026/2026-10-16.md) and [5 papers](digests/scientific-computer-use/2026/2026-10-16.md) in 2 issues. Mathematical verification, physical measurements and research audit trails. No resource revisions, returning appearances or backfilled issues.

- **2026-10-15** — Added [11 news events](digests/ai4science/2026/2026-10-15.md) and [5 papers](digests/scientific-computer-use/2026/2026-10-15.md) in 2 issues, plus [1 source](resources/sources.md), [2 companies and 2 funding events](data/README.md). From climate simulation to experimental feedback. No resource revisions, returning appearances or backfilled issues.

- **2026-10-14** — Added [8 news events](digests/ai4science/2026/2026-10-14.md) and [5 papers](digests/scientific-computer-use/2026/2026-10-14.md) in 2 issues, plus [1 company and 1 funding event](data/README.md). Laboratory feedback, human guidance and scientific software checks. No resource revisions, returning appearances or backfilled issues.

- **2026-10-13** — Added [10 news events](digests/ai4science/2026/2026-10-13.md) and [5 papers](digests/scientific-computer-use/2026/2026-10-13.md) in 2 issues, plus [1 source](resources/sources.md), [1 company and 1 funding event](data/README.md). Measurement feedback and mathematical verification. No resource revisions or backfilled issues.

- **2026-10-12** — Added [9 news events](digests/ai4science/2026/2026-10-12.md) and [5 papers](digests/scientific-computer-use/2026/2026-10-12.md) in 2 issues; revised 1 catalog record across 2 CSVs. Also launched [3 bilingual guides](guides/scientific-agent-selection.md), [1 Agent index](agent-index.md), [1 Skill](skills/ai4science-research/SKILL.md) and a Pages reading site; listed in 2 Skill directories and connected to the [SelfRef Library](https://www.selfref.org/agents/curated.html).

- **2026-10-11** — Added [14 news events](digests/ai4science/2026/2026-10-11.md) and [5 scientific-agent papers](digests/scientific-computer-use/2026/2026-10-11.md) in 2 new issues; 1 returning event. Added 1 source, revised 1 source and 2 catalog records across 2 CSVs. Mathematical verification & instrument workflows. No paper revisions or backfilled issues.

- **2026-10-10** — Added [2-language update history](CHANGELOG.zh-CN.md), covering 17 material dates; the [homepage](README.md#updates) shows 7 days. Cataloged [3 items already present in the September 27 digest](digests/ai4science/2026/2026-09-27.md), corrected 182 news archive references, and revised 4 issues to remove editorial workflow language. New independent resources: 0; backfilled issues: 0.

## Backfilled reading timeline

- **2026-10-10** — [11 news items](digests/ai4science/2026/2026-10-10.md) · [5 scientific-agent resources](digests/scientific-computer-use/2026/2026-10-10.md) — Crop breeding & scientific discovery.
- **2026-10-09** — [9 news items](digests/ai4science/2026/2026-10-09.md) · [5 scientific-agent resources](digests/scientific-computer-use/2026/2026-10-09.md) — Climate models & telescopes.
- **2026-10-08** — [9 news items](digests/ai4science/2026/2026-10-08.md) · [5 scientific-agent resources](digests/scientific-computer-use/2026/2026-10-08.md) — Cell maps & X-ray agents.
- **2026-10-07** — [12 news items](digests/ai4science/2026/2026-10-07.md) · [5 scientific-agent resources](digests/scientific-computer-use/2026/2026-10-07.md) — Protein design & automated labs.
- **2026-10-06** — [7 news items](digests/ai4science/2026/2026-10-06.md) · [5 scientific-agent resources](digests/scientific-computer-use/2026/2026-10-06.md) — Instrument control & quantum sensing.
- **2026-10-05** — [7 news items](digests/ai4science/2026/2026-10-05.md) · [5 scientific-agent resources](digests/scientific-computer-use/2026/2026-10-05.md) — Lunar models & materials analysis.
- **2026-10-04** — [11 news items](digests/ai4science/2026/2026-10-04.md) · [4 scientific-agent resources](digests/scientific-computer-use/2026/2026-10-04.md) — Scientific software & cloud labs.
- **2026-10-01** — [12 news items](digests/ai4science/2026/2026-10-01.md) · [2 scientific-agent resources](digests/scientific-computer-use/2026/2026-10-01.md).
- **2026-09-30** — [10 news items](digests/ai4science/2026/2026-09-30.md) · [2 scientific-agent resources](digests/scientific-computer-use/2026/2026-09-30.md).
- **2026-09-29** — [13 news items](digests/ai4science/2026/2026-09-29.md) · [3 scientific-agent resources](digests/scientific-computer-use/2026/2026-09-29.md).
- **2026-09-28** — [9 news items](digests/ai4science/2026/2026-09-28.md) · [4 scientific-agent resources](digests/scientific-computer-use/2026/2026-09-28.md).
- **2026-09-27** — [1 science digest](digests/ai4science/2026/2026-09-27.md).
- **2026-09-26** — [15 news items](digests/ai4science/2026/2026-09-26.md).
- **2026-09-25** — [25 news items](digests/ai4science/2026/2026-09-25.md).
- **2026-09-24** — [22 news items](digests/ai4science/2026/2026-09-24.md).
- **2026-09-23** — [1 science digest](digests/ai4science/2026/2026-09-23.md).
- **2026-09-22** — [18 news items](digests/ai4science/2026/2026-09-22.md).