# How long will the old observable be maintained?

**URL:** <https://talk.observablehq.com/t/how-long-will-the-old-observable-be-maintained/10827>\
**Category:** Help\
**Created:** [September 8, 2026, 12:37pm UTC](https://talk.observablehq.com/t/how-long-will-the-old-observable-be-maintained/10827 "2026-09-08T12:37:25Z")\
**Posts on this page:** 1\
**Showing post:** 12

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**Author:** ![jwoLondon](https://yyz2.discourse-cdn.com/flex030/user_avatar/talk.observablehq.com/jwolondon/32/259_2.png) [@jwoLondon](https://talk.observablehq.com/u/jwoLondon)\
**Post date:** [September 11, 2026, 9:20am UTC](https://talk.observablehq.com/t/how-long-will-the-old-observable-be-maintained/10827/12 "2026-09-11T09:20:18Z")

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Related: What does a .js cell do that a .ts cell cannot? Could the .js cell option be removed entirely? That would focus JS/TS in one place and make it a bit easier for those unfamiliar, to adapt to “all JavaScript and TypeScript goes here”.

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