The Goods and Services Tax Network (GSTN) on September 19, 2026, has introduced emSigner v3.3 to support new DSC USB tokens issued on or after September 21, 2026.
The following has been stated:
Users with existing valid and working DSC tokens may continue using their current emSigner version. However, users receiving new or renewed DSC tokens from September 21, 2026 must upgrade to emSigner v3.3, as older versions will not support these tokens.
emSigner v3.3 supports existing tokens as well and requires Java 1.8. Users should download the updated version from the GST Portal.
Existing DSCs on FIPS 140-2 tokens issued on or before September 21, 2026 can continue until expiry, while fresh issuance/renewal generally requires FIPS 140-3 tokens, subject to applicable exceptions.
