Update README.md

Author: pxpm

README.md

@@ -113,7 +113,7 @@ Starting with v5, Backpack has become open-core. Its features have been separate
 ## Versioning
 
 Starting with Backpack v5, all our packages follow [semantic versioning](https://semver.org/). Here's what `major.minor.patch` (eg. `5.0.1`) means for us:
-- `major` - breaking changes, major new features, complete rewrites; released **once a year**, in February; it adds features that were previously impossible and upgrades our dependencies; upgrading is done by following our clear and detailed upgrade guides;
+- `major` - breaking changes, major new features, complete rewrites; released **once a year**, in the first quarter; it adds features that were previously impossible and upgrades our dependencies; upgrading is done by following our clear and detailed upgrade guides;
 - `minor` - new features, released in backwards-compatible ways; **every few months**; update takes seconds;
 - `patch` - bug fixes & small non-breaking changes; historically **every week**; update takes seconds;