Implications for extension authorsEvery extension is now required to define a dependency for TYPO3. If you try to upload an extension without a dependency for TYPO3 or with a dependency which is outside the range of currently supported TYPO3 versions, your upload will be rejected and an error message will be shown. Simply add to ext_emconf.php a dependency for the version(s) you tested the extension with:
'constraints' => array(Note: You can set the minimum for a version of TYPO3 which is not supported anymore, but then the maximum must be within the supported range. You cannot set a maximum outside the range of supported versions. Currently and until the release of TYPO3 6.2 beta1 — that is, "feature freeze" — in September this year, the upper bound of allowed range is 6.1.99.
'depends' => array(
'typo3' => '4.5.0-4.7.99',
Recent Uploads on TERAs you can see with recent uploads of extensions, this hard check is not yet effective. Nevertheless, the second step after refusing uploads without a proper dependency for TYPO3, in the coming days, will be to mark existing extensions without such dependency as "outdated".
More informationThe Extension Coordination Team  handles this operation. See  for the wiki information. Feel free to use the mailing lists to ask questions and discuss the procedures.  <link http: forge.typo3.org projects team-ect _blank>forge.typo3.org/projects/team-ect
 <link http: forge.typo3.org projects team-ect wiki ter_clean-up _blank>forge.typo3.org/projects/team-ect/wiki/TER_Clean-up