3.2.0(2025.11.28)
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1.Upgraded the minimum supported version from iOS 8 to iOS 12.
2.Changed the framework of the SDK to XCframework.

3.1.6(2024.9.27)
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1.Offset calculation error fixed.

3.1.5(2024.8.27)
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1.Added the function to query the lock status of the tag.

3.1.0(2024.2.29)
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1.Add Signatures and Privacy Manifests for SDKs

3.0.2(2023.12.5)
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1.The Serial No. was incorrectly displayed as 12 bits, modified to 16 bits.

3.0.1(2023.3.27)
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1.Fixed some minor bugs.

2.10.1(2022.10.17)
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1.To class AsProtocolAsReaderL251G.h, add the following function:
+ (instancetype)sharedInstanceInitWithAsReaderGUN:(AsReaderGUN *)asReaderGUN delegate:(id<AsReaderDelegate>)receiver;

2.10.0(2022.08.04)
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1.Fixes the issue where changing the Algorithm Type could cause the Session function  unavailable.

2.9.0(2022.07.12)
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1.Fixes a problem where Session function became invalid after Algorithm Type was set to Fixed Q.

2.8.0(2022.01.18)
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1. Fixes some minor problems.

2.7.0(2021.06.04)
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1. Fixes an issue where the SDK would return an incorrect delegate when pressing the left and right mode keys alternately.
2. Fixes an issue that releasing the Trigger button after setting the MASK sometimes fails to stop the Inventory.
3. Fixed some minor problems.

2.6.0(2021.04.20)
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1.Adds temperature and humidity tag function (BETA).
2.Adds the function of restoring barcode settings.
3.Adds the function of controlling prefixes and suffixes.
4.Fixes some minor issues.

2.5.0(2020.10.20)
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AsReaderDelegate.h
- (BOOL)onAsReaderTriggerKeyEvent:(BOOL)status;
Fixed the problem that the  SDK does not perform the default operation  when the return value is "YES".

2.4.0(2020.09.16)
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1.Fixed the problem that the App and L251G could not be connected when the App and L251G were repeatedly and fast disconnected.
2.Fixed some minor problems.

2.3.0(2020.07.28)
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1.Fixes that Session and Flag cannot be set when Inventory in TID mode.

2.2.0(2020.07.22)
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·Fixed the problem where two delegates are implemented simultaneously and return "nil" if the second delegate is used.
1.- (void)detectBarcode:(BarcodeType)barcodeType codeId:(NSString *)codeId barcode:(NSString *)barcode;
2.- (void)detectBarcode:(BarcodeType)barcodeType codeId:(NSString *)codeId barcodeData:(NSData *)barcodeData;

2.1.0(2020.07.17)
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1. Modified the problem of a "force" newline code at the end of scanned barcode data.
2. Fixed the problem where  the function readTag was called back unreasonably after the function inventoryWithTidOffset was executed in addition to the function inventoryWithTidOffset.
3. Modified the problem that the data "REBK20" was returned to the APP once the APP was connected to the L251G device in barcode scanning mode.
4. Fixed the problem that if the iOS device is set to sleep automatically, the iOS device will automatically go to sleep even when the APP is scanning.
5. Fixed the problem that when the Rescan Time int the Barcode Scan page is set below 500ms, sometimes misreading occurs in scanning.
6. Changed the way to get the SDK version.
7. Fixed some minor problems.