Google Antigravity 1.4.5 release notes

Improved how agent responses read: a blank line now separates the collapsed thought block from the response, and once the response starts, the collapsed thought shows only its Thought for … header instead of repeating a snippet of the thinking; expand it to see the full thinking.
Improved / search in the /diff file view to count matches inside folded unchanged lines, such as match 2/5 · +3 hidden or no matches · +1 hidden, and the f hint now reads show N hidden matches.
Improved /diff's Commit Tree to mark the selected commit with the same > cursor and selection color as All Changes and Per Turn instead of a highlighted bar, and made Per Turn start with the cursor on the first file instead of its turn header.
Improved recurring cron schedules created with the agent's schedule tool to fire at a consistent per-schedule offset instead of exactly on the cron boundary, to avoid traffic spikes: schedules that repeat within a day, such as every 30 minutes or hourly, now fire somewhere within their period, fixed-time schedules such as daily at 9:00 still fire within their scheduled minute, and the agent can request exact timing when a schedule needs it. @every schedules are unchanged.
Improved idle CPU usage by pausing screen refreshes while nothing on screen changes, roughly halving the CLI's CPU use when it is idle.
Improved CPU usage while a response streams by skipping redundant screen updates and refreshing the credit balance less often.
Improved rendering speed for long conversations, and made long conversations load faster when you resume them.
Improved startup CPU usage when the CLI refreshes its conversation summaries.
Improved memory usage by allocating storage for the prompt and other text inputs as you type instead of reserving it up front.
Fixed the agent silently retrying, potentially without end, when a model response was blocked by content safety filters.
Fixed plugins failing to load when plugin.json gives skills as a single path string, such as "skills": "./skills/", instead of an array, as some plugins written for other tools do.
Fixed marketplace plugin installs and automatic updates failing with a checksum mismatch or network error when a download was briefly stale or interrupted; the CLI now retries the download once.

What the release notes say