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.
Important Notices
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From the beginning of 2027, ForeFlight integration will support only API V2. API V1 will no longer be available. If your ForeFlight in Leon still uses API V1, switch it to API V2 before the end of 2026.
Admin
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The Add-ons panel now also shows integrations activated by individual users or crew members. An integration used by at least one person is marked as active, and the Users tab on its tile lists the people who have enabled it.
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Audit Logs now show the history of Phonebook data exports (new “Phonebook export” event type), making it easier to track who exported contacts and when.
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The “Automatically delete PAX after given days” and “Auto-archive PAX list” features can now safely work together – archiving a passenger no longer causes them to be skipped by automatic deletion.
Airport Directory
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You can now define custom slot validity times for an airport, different from the default (-5 / +10 min), within a range of -30 to +30 minutes. This helps you quickly assess whether a slot (or PPR) needs adjusting after a schedule change. The data is shown in the airport tooltip in OPS views (when “Slot required” is ticked) and can be printed on OPS documents, e.g. the Trip Sheet.
More Information: HERE
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In the Suppliers and Hotels tabs of the Airport Directory you can now set a supplier approval date (Approved date), just like for Ground Handlers and Fuel. Changes to this date are recorded in the change history.
More information: HERE
FTL
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Support for the special FTL rule for line training (18+2). In FTL settings you can select the training positions to which Leon applies this rule’s limits: a maximum of 20 landings, 11 h FDP and 6 h flight time, with extended rest after the full landing limit has been used during the WOCL.
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The FTL Calculations section now supports local time. Use the time zone switch to display all times converted to the airport’s local time.
OPS
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New “Charter source” field in the Trip tab, to mark who sourced the charter: the Owner, the Operator or a 3rd party – useful for settlements and reporting. The field is optional and is available for the PAX Charter and Cargo Charter trip types. A new column and filter for this field are available in Report Wizard (Trip and Flight scopes).
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Journey Log has been extended with new fields, so you can record more data directly on the flight: Duty time (entered manually in HHH:MM format; it does not affect FTL calculations), IFR Flight Time and VFR Flight Time (filled automatically with the flight time based on the flight rule: I – IFR, V – VFR), Extra Baggage and Payload (numeric fields with a weight unit selector, defaulting to the Load weight unit set in the aircraft profile) and Crew fitness (checkbox). All new fields are available as columns in Report Wizard.
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The Journey Log change history now also shows changes to the aircraft assigned to the flight, making it easier to see when and to which registration a flight was moved.
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Reduced duplication of automatic MVT messages. In MVT rules you can exclude updates coming from Eurocontrol from triggering a send, so recipients no longer receive several similar messages about the same event.
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New TOTAL_EXPECTED_DELAY variable in MVT message templates. It shows the difference between ETD and STD in HH:MM format, regardless of the delay codes entered. If no ETD is entered, the field stays empty.
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In Custom Email Templates you can now define default recipients in the “To” field (one or more addresses, as in the CC field). When sending, the recipients are filled in automatically according to the configuration.
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The FUEL tab on a flight now shows fuel suppliers marked as “preferred” even when no price file has been uploaded for them in OPS > Fuel Prices, so you can see straight away that the price list is not available in Leon and act on it.
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Fuel prices without an explicit expiry date are no longer active indefinitely. By default Leon sets their expiry date to 30 days after upload, so outdated prices are no longer suggested on flights. The number of days can be changed in General Settings > Fuel prices.
More Information: HERE
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In checklist configuration, Hotel and DELISKY items can now be moved between groups (OPS / SALES / FLIGHT CARE) to match the checklist layout to the way your team works.
Sales
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Leon now automatically calculates the French Airport Tax, in the same way as other taxes supported in the Sales module – there is no need to add it manually to quotes. Columns with the values of this tax are available in Report Wizard (Trips scope).
More information: HERE
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Improved Flight Time calculation for quotes retrieved from Avinode, so that the flight time is consistent with the result of the Calculate Flight Time function.
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Some settings from General Settings > Sales have been moved to a dedicated Sales module settings page with a new, clearer design, so all sales settings are now easier to find in one place.
Sched
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Re-importing an SSIM file now correctly recognises flights saved under the carrier’s IATA code when they are scheduled in Leon under its ICAO code (and vice versa). Instead of deleting and re-adding the flights, Leon updates them, so crew assignments and other flight data are preserved.
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Automatic Fleet Planning now takes existing aircraft assignments into account when optimising the plan, minimising the number of changes where possible.
Wingman and MCP
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New MCP tools for reading hotel bookings. AI agents connected to Leon can now not only create bookings but also review them – e.g. to catch bookings that are out of date after a schedule change or to avoid duplicates. The tools let you retrieve bookings by date range, airports and crew members, or by selected flights or trips, and list bookings that no longer match the current schedule.
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Connecting AI clients (e.g. Claude, ChatGPT) to Leon’s MCP server is now easier. The server supports automatic OAuth authorization discovery in line with the current MCP specification, so signing in works without entering addresses manually.
Release Impact Overview
A quick overview of how the changes in this release may affect your day-to-day work in Leon. Changes are grouped by area and marked as affecting all operators or optional, with a short note on what to do, if anything. See: Sprint 230: Release Impact Overview
In addition to the features mentioned above, changes have been made to Leon API, which can be reviewed in the provided changelog.