Gpg4win version 5.1.0 is available since 2026-07-29. Changes Kleopatra

• Improvement of the first part of the decryption/verification messages. (T8273)
• Improvement of the import certificates dialog text. (T7446)
• The default appearance of S/MIME root certificates was changed. (T8275)
• Addition of "Save Secret Team Key" button to success message of "Team Key"-creation. (T8166)
• Addition of "Copy" button to context menu of details tables. (T8134)
• Removal of "Backup secret key" from the context menu. (T8153)
• Removal of the .gpgsk backup offer when moving keys to card. (T8327)
• Removal of unnecessary path info from file verification feedback. (T8332)
• We now use a shorter text for verification with same name ".sig" file. (T7795)
• Prevent starting Kleopatra as Admin on Windows. (T8210)
• Decrypting packets with hybrid cipher works again without entering a symmetric passphrase. (T7339)
• Cancellation of signing only operation now reports cancellation. (T8289)
• Fix application of certificate category styling. (T8279,T8258)
• Gpgme: Fix hanging file encryption due to invalid S/MIME certificate. (T8187)
• Use an outer folder in archive decryption if the archive was renamed. (T8154)
• Do not offer "Save Secret Team Key" for card keys. (T8146)
• Do only ask for confirmation twice when deleting a secret key. (T7538)
• Add ".pub" suffix to the file selector filter when importing certificates in Kleopatra. (T7451)
• Cancellation of team key save dialog no longer keeps a background process open. (T8150)
• Prevent creation of opaquely signed unencrypted archives (S/MIME or mixed encryption). (T8324)
• Fix application order from settings via windows registry and config files. (T5707)
• Fix protocol check of detached OpenPGP signatures. (T8337)
• Fix info in smart card usage column for auth keys. (T8316)
• Disable subkey backup action in key details for primary key. (T8321)
• Prevent startup of dirmngr if it has been disabled via config files. (T8304) Okular/GnuPG-edition
• Fix shown trust information for "not trusted" or "not verified" S/MIME certificates. (T8294)
• Not trusted certificate are no longer offered for signing. (T8017)
• Prevent overwriting of the original file when saving the signed document. (T7705)
• Fix for resizing/moving new signature. (T8335)
• Fix link to Kleopatra in signature properties. (T8295)
• OpenPGP certificate export now creates ".asc" files. (T8293)
• Fix OpenPGP fingerprints in signature properties. (T8291)
• Give an error when trying to sign with wrong passphrase. (T8018)
• Improvement of error messages when signing. (T7285)
• Highlight / preselect "nonRepudiation" certificates for qualified signatures. (T6632)
• Disable file saving during the signing process. (T8314)
• Disable reload during signing process. (T8345)
• Hide (unhelpful) details in bad passphrase error dialog (T8341) Outlook Classic Add-In (GgpOL)
• The Ribbon Icon and Tooltip now reflect the selected security settings of a new mail. (T7098)
• Content of HTML-only OpenPGP mails is now shown with "Read as plain" activated. (T7843)
• Fix for cases where attached mails were shown empty. (T7806,rO06e35e5)
• Fix multipart attachment type in case of no cid. (T8161)
• p7m attachments no longer break attachment parsing. (T8113)
• Fix an Outlook freeze when saving S/MIME encrypted draft. (T7837)
• Fix memory leaks. (rC5b52c25,rCc18e33a)
• Fix for a case where the overlay did stay open after sending. (rO0d36b54)
• gpg4win-tools: Fix encoding for status information. (T8362) Outlook-New Add-In (GpgOL/Web) Several improvements to this still EXPERIMENTAL component. Among others:
• The native client now initially acts as a straight forward first install wizard, and becomes an intuitively usable configuration dialog afterwards.
• Improved status notification in both native client and tray icon.
• When no secret key is available for the current Outlook account, the addin helps you generate one (through Kleopatra).
• Attached public keys can be imported to your keyring directly.
• You can now attach all relevant public keys to an outgoing message automatically.
• Addin windows are now opened in the foreground.
• The security level of keys used for signing a message is prominently shown.
• The addin can't be run with admin privileges any longer.
• Usability of the reencrypt feature was significantly improved.
• Binding the addin components no longer relies on the account's e-mail address.
• Improved handling of the TLS certificate generating process.
• Addition of a warning if there's a mismatch between installed version and the one registered with Outlook (manifest). Engine (GnuPG) For changes in the backend see the release info for GnuPG versions from 2.5.19 up to 2.5.21: (T7998,T7997,T8262) Versions of the Components

Component	Version	Remarks
GnuPG	2.5.21	T8262
Kleopatra	gpg4win-5.1.0
GpgOL	2.7.3
GpgEX	1.1.2
Libgcrypt	1.12.2	T8114
Libksba	1.8.0	T8253