• [12.x] Add prepend option for Str::plural() by @caseydwyer in #56802
• [12.x] Fix multi-line embedded image replacement in mail views by @iammursal in #56828
• [12.x] Add supports for SQS Fair Queue by @crynobone in #56763
• [12.x] Support enum values in Collection countBy method by @jnoordsij in #56830
• [12.x] Test Improvements by @crynobone in #56838
• [12.x] Fix docblocks and all() method in ArrayStore for consistency by @AhmedAlaa4611 in #56845
• [12.x] Improve Grammar in ArrayLock by @cosmastech in #56844
• [12.x] Normalize comments for timestampsTz() and nullableTimestampsTz() by @AhmedAlaa4611 in #56840
• [12.x] Reduce meaningless intermediate variables by @AhmedAlaa4611 in #56843
• [12.x] Simpler and consistent Arr::collapse() by @weshooper in #56842
• [12.x] Improving readability by @AhmedAlaa4611 in #56847
• [12.x] Test Improvements by @crynobone in #56850
• [12.x] Remove extra space before line number in exception trace by @mtbossa in #56863
• [12.x] Remove unused variable by @AhmedAlaa4611 in #56861
• [12.x] Add support for UnitEnum in Collection groupBy method by @jnoordsij in #56857
• [12.x] Add missing void return type to test methods by @AhmedAlaa4611 in #56860
• [12.x] Improve countBy docblock in Collection to allow for enum callback by @jnoordsij in #56856
• [12.x] Improve InteractsWithContainer return types by @axlon in #56853
• [12.x] Allow mass assignment for value object casting. by @AbdelElrafa in #56871
• [12.x] Allows APP_BASE_PATH from $_SERVER by @crynobone in #56868
• [12.x] Fix typo in docblock by @dwightwatson in #56867
• [12.x] Allow enums in other DatabaseManager methods by @jnoordsij in #56878
• Add health score badge to README by @jonathimer in #56875
• [12.x] Let toPrettyJson() accepts options by @lucasmichot in #56876