2.13:
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 * Remove Serendipity Series < 2 conditions

2.12:
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 * Secure external target _blank link(s) by living standard rel="noopener"

2.11:
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 * Partly Sync [de] translation

2.10:
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 * Put JS serendipity_imageSelector_addToElement(), serendipity_imageSelector_addToBody()
   into the serendipity scope.
 * Raise requirements to Serendipity 2.0 for this scope issues.

2.09:
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 * Now uses lang API - extends required Serendipity version to 1.6
 * No uses PHP's mysqli Extension, which replaces the old and deprecated
   mysql API. This extends the required PHP version to 5.0.0.
 * Editors Update Note: untested if usable under Serendipity 2.0+.


2.08.2
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 * S9y 2.0 serendipity_define.js reference file fix


2.08:
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Removed obsolete language attribute. (yellowled)