August 2026

August 25 - Unicon v26.8

Module Versions

Modules	Versions
unicon.plugins	v26.8
unicon	v26.8

Changelogs

unicon

Fix

• unicon.bases.connection

  • Modified Connection connect

    • Clear stale previous_credential on the target context before the proxy/non-proxy branch so proxy_connections reconnects also restart credential selection from the first login_creds entry.

  • Modified Connection proxy_connect

    • Clear stale previous_credential on each proxy hop before its connection provider runs, so every hop of a multi-hop proxy chain restarts credential selection. Only hop 0 goes through setup_connection(); hops 1 and beyond are connected directly and previously retained relogin state from a prior session.

  • Added Connection reset_previous_credential

    • Helper that clears previous_credential on a connection and its subconnections.

• unicon.bases.routers.connection

  • Modified BaseSingleRpConnection and BaseMultiRpConnection setup_connection

    • Clear stale previous_credential (parent and subconnection contexts) at the fresh-spawn boundary so every reconnect restarts credential selection from the first login_creds entry (e.g. terminal server), even for plugins that override disconnect() (hvrp, gaia, fxos/ftd).

• unicon.bases.routers.connection_provider

  • Modified BaseSingleRpConnectionProvider establish_connection

    • Store the credential that actually answered the most recent password prompt as current_credentials, so a terminal-server post action that reaches the device prompt before later login_creds entries are consumed selects the correct credential.

  • Modified disconnect cleanup

    • Ensured all spawns are closed when sending the exit command fails.

• unicon.bases

  • Modified Connection, BaseMultiRpConnection, and BaseStackRpConnectionProvider

    • Moved clear-console retries outside connection dialog callbacks so simultaneous stack member refusals are recovered once and retried from a fresh set of spawns.

    • Avoided a redundant second stack state detection after a member has already reached a valid non-disable prompt.

    • Preserved the second detection for disable prompts that may actually represent a standby-locked stack member.

    • Moved the CONNECTION_REFUSED_MAX_COUNT default into core settings with the retry logic that consumes it.

    • Preserved the originating device for proxy connection refusals so recovery never clears an unrelated target console.

    • Preserved the originating proxy device while setting up multi-RP subconnections.

    • Preserved the final target device when a refusal occurs after connecting through a proxy.

  • Modified connection cleanup

    • Prevented failed connections and reconnects from retaining stale PTY-backed spawns.

    • Removed temporary connection log handlers after successful and failed connection attempts.

• unicon.eal.backend.pty_backend

  • Modified Spawn close

    • Made PTY cleanup idempotent and added bounded child-process reaping.