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+## 1.2
+
+Fixed the bug where the user block number is incorrectly handled throughout the app's saving and loading functions. Also updated the wording in configuration to be more accurate.
+
+## 1.1
+
+There's no functional update in this version. Only some tweaks.
+1. The block number iterator was updated but then @Willy-JL noticed it causes more trouble so it was reverted. 
+2. The writing success screen now uses up-to-date system icon. The changes was made by @Willy-JL in his app catalog. 
+3. The functions that handle file format and directory are updated to use OFW's built-in functions instead of the old manual method. Thank @augustozanellato for introducing me to these functions. This wouldn't affect functionality. However, the .t5577 files in previous versions wouldn't be supported in this update. Please use the updated example `examples/Tag_1.t5577` as reference. The main change is parsing the 8-digit hex block data into 4 bytes. 
+4. Added Github workflow to check build each time a new commit is made. This was copied from @xtruan 's [PR](https://github.com/zinongli/KeyCopier/pull/5) to my other app.
+
+What's Changed
+* Update t5577_writer.c by @Moon-Byeong-heui in https://github.com/zinongli/T5577_Raw_Writer/pull/8
+* Revert "Update t5577_writer.c" by @zinongli in https://github.com/zinongli/T5577_Raw_Writer/pull/9
+* Use Stock Functions to Achieve Directory and Flipper Format functions by @zinongli in https://github.com/zinongli/T5577_Raw_Writer/pull/10
+
+New Contributors
+* @Moon-Byeong-heui made their first contribution in https://github.com/zinongli/T5577_Raw_Writer/pull/8
+
+**Full Changelog**: https://github.com/zinongli/T5577_Raw_Writer/compare/v1.0...v1.1
+
+## 1.0
+
+The app is fully functional now. It supports writing and editing manually on the flipper along side all the previous features.
+Note: this app is built with API 69.0 on OFW 0.104.0 release.
+
+## 0.1
+
+Basic functions are all ready.
+Users can write to their T5577.
+They can configure the modulation, RF clock, and block number using the configuration menu.
+They can save the current file.
+They can load an existing file.
+
+The function to add block 1-7 data is still being developped.
+For now, users would have to write their own raw data using the data file template.
+Put it into apps_data/t5577_writer folder, load it inside the app, and write onto a T5577 fob.
+
+To install, download the following .fap file, drag the .fap into your Flipper Zero's apps/RFID folder, and start writing!