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20 Apr 2026

Leon 215 released

We have recently initiated the deployment of a new version of Leon. Over the next coming days, customers will gradually transition to the updated version. If you encounter any functions that are not working as expected, please notify us via the Customer Portal.

Admin

  • The Email Templates section in the Privileges module has been moved from Admin System to Admin Operational. This change makes it easier for users with operational privileges to manage email templates without requiring access to the full Admin System.

Crew

  • A new filter has been added to the Crew Timeline view, allowing planners to search for crew members who have a specific duty assigned within a selected time range. This makes it easy to identify available crew without manually browsing the calendar.

Crew Training

  • The Prodefis integration now supports synchronisation of attachments for passports and visas (previously only certificates were supported). Additionally, the file retrieval mechanism has been updated to always download the latest revision of a file, ensuring documents in Leon are always up to date.

OPS

  • A default trip type per client can now be set directly in the OPS module. The option is available in the client profile in the Phonebook. Previously, this could only be configured for the Sales module — the same functionality now works in OPS as well, enabling consistent management of client preferences across both modules.
  • Flight change history now includes a dedicated event for saves performed via the "Save ignoring warnings" option. Each such save is now recorded separately, making it easier to audit when and by whom a flight was saved while bypassing system warnings.
  • Two new checklist items have been added: Parking Stand ADEP and Parking Stand ADES. These are flight-level operational items available in the default OPS section, allowing users to enter the parking stand number at both the departure and arrival airport.
  • A new "Manual" approach type has been added to the Enabled Approaches section in flight editing. This option is configured in system settings and gives operators additional flexibility when defining permitted approach procedures.
  • The flightModified and tripsModified GraphQL API queries have been extended with an optional argument to specify the earliest departure date and time to include in results. This makes it easier for integrators to retrieve only changes relevant to flights scheduled within a specific time window.

Sched

  • A bulk checklist status change option has been added in the SCHED module under "Modify flights", allowing users to update checklist statuses for multiple published flights at once. This saves time when updating statuses across entire flight plans.

Sales

  • Day Notes from the OPS calendar are now integrated into the Sales calendar. Sales users can see Day Notes directly in their calendar view — without needing to switch to the OPS module.
  • The Issuer field on an invoice can now be edited after the invoice has been issued. Previously, this field was locked after finalisation, making it difficult to correct in the event of a mistake.
  • When retrieving fuel prices from WKC (WFS), the system now also fetches the "minimum fee" field and displays it in the note alongside the price. This allows for a more complete cost assessment when planning fuelling.
  • A bug has been fixed that caused an incorrect default flight number to be displayed when adding a new quote on a different aircraft tail, following the creation of an option on another tail.

Wingman and MCP

  • An improvement to the MCP server's oAuth authorisation now allows Anthropic tools — Claude Code, Claude.ai, Claude Cowork — as well as many other AI tools from third-party providers to be connected directly to Leon. This opens entirely new possibilities for automating work with Leon data via AI assistants. To activate this feature, please contact our support team.

In addition to the features mentioned above, changes have been made to Leon API, which can be reviewed in the provided changelog.

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