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# 1.4.3 RTG4™

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This section describes new features and enhancements for RTG4 devices in Libero® SoC v2026.1.

## 1.4.3.1 PROBE_READ_DATA Pin

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Libero® SoC v2026.1 enables the layout log to print the I/O settings for the PROBE_READ_DATA output pin when selected.

## 1.4.3.2 Compressed Bitstream Support for RTG4™ DAT File Generation

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Libero® SoC v2026.1 enables compressed bitstream support during RTG4 DAT file generation. This enhancement helps reduce generated DAT file size for supported RTG4 programming flows.

Rev: 2026.1

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