Skip to content
AAA.win
EN
EnglishEN中文ZH日本語JAEspañolES
SearchSubmit a tool
Menu

change record

Google's Gemini 2.5 announcement: a reproducibility checkpoint

A dated source note on the March 2025 Gemini 2.5 announcement, with a practical retest checklist.

Event date:

Editorially reviewedVerified 2026-08-112 official or primary sources

When a provider introduces a new model family or reasoning mode, comparison pages need a new version boundary—not a silent score replacement.

Google announced Gemini 2.5 on March 25, 2025, beginning with an experimental Gemini 2.5 Pro release. The official post described it as a thinking model intended for complex problems and highlighted reasoning and coding.

This historical summary does not assert that the experimental label, access path, or model lineup is current. The live Gemini documentation remains the authority for present availability.

For a trustworthy comparison, record the model version, reasoning configuration, date, product surface, tools, and task set. Keep the older run visible rather than overwriting it with a result from a different configuration.

What changed

  • Google announced the Gemini 2.5 model generation.
  • The launch post described a reasoning-oriented model configuration.
  • The announcement established a new evaluation boundary for existing Gemini comparisons.

What to do now

  • Confirm the current model and lifecycle status in official documentation.
  • Do not compare experimental and stable configurations without labeling them.
  • Retain past results with their original test conditions and dates.

Sources checked

Open the original pages before relying on a time-sensitive product decision.

  1. Gemini 2.5: Our most intelligent AI modelGoogle
  2. Gemini modelsGoogle DeepMind
Version · v4.3.4-indexnow-root-proof

Latest releases

IndexNow root-proof request compatibility

After v4.3.3, the exact root-level {key}.txt proof returned HTTP 200, but a full request carrying keyLocation still returned HTTP 403; a minimal homepage request with the same production key and no keyLocation returned HTTP 202. This release omits that field, while the automatic full run and idempotent rerun remain deployment checks.

IndexNow key-proof compatibility

Changed IndexNow verification to the official root-level {key}.txt convention after the first production notification returned HTTP 403; revalidation remains pending, while the website, sitemaps, and Bing sitemap processing are unaffected.

Bing sitemap discovery and IndexNow change notifications

Prepared canonical sitemap discovery for Bing and added automatic IndexNow change notifications while keeping segmented sitemaps authoritative and making no claim that a notified URL has been crawled or indexed.

View all releases