# \[Release\] VFRnav 4.24

**URL:** <https://forum.vfrnav.com/t/release-vfrnav-4-24/250>\
**Category:** Updates & Releases\
**Created:** [March 13, 2026, 7:26am UTC](https://forum.vfrnav.com/t/release-vfrnav-4-24/250 "2026-03-13T07:26:19Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![H655](https://forum.vfrnav.com/user_avatar/forum.vfrnav.com/h655/32/350_2.png) [@H655](https://forum.vfrnav.com/u/H655)\
**Post date:** [March 13, 2026, 7:26am UTC](https://forum.vfrnav.com/t/release-vfrnav-4-24/250/1 "2026-03-13T07:26:19Z")

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### 🛩 VFRnav 4.24

**VFRnav 4.24** introduces new connectivity options for external data sources and further improves radio integration and Bluetooth reliability.

#### ✨ What’s New

- **New:** Support for **external pressure data** via the **NMEA PGRMZ sentence**
- **New:**  **Serial data source support**. VFRnav can now receive data not only via **USB–RS232 adapters** , but also through **native serial interfaces** on compatible hardware (e.g. SteFly)
- **New:**  **FIS frequencies** can now be sent to the radio directly from the **airspace list**
- **Improved:** More **stable Bluetooth Low Energy connections**

#### 🛠 Fixes

- **Fix:**  **Bluetooth Classic connection** repaired
- **Fix:** Incorrect **“No GPS” warning** when using an **external GPS source**

* * *

As always, if you encounter any issues or have suggestions for improvement, we’d love to hear from you — either by **email** or here in the **forum**.

**Blue skies and safe flying!** ✈

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**Author:** ![Jan1](https://forum.vfrnav.com/user_avatar/forum.vfrnav.com/jan1/32/403_2.png) [@Jan1](https://forum.vfrnav.com/u/Jan1)\
**Post date:** [March 15, 2026, 11:40am UTC](https://forum.vfrnav.com/t/release-vfrnav-4-24/250/2 "2026-03-15T11:40:26Z")

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Hello Hermann,

unfortunately the status of the external data sources (Bluetooth) keeps switching from connected to not connected. The Garmin GLO2 unfortunately does not establish a connection to VfRnav & CCAS after the update.

Regards, Jan

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**Author:** ![phifra](https://forum.vfrnav.com/user_avatar/forum.vfrnav.com/phifra/32/386_2.png) [@phifra](https://forum.vfrnav.com/u/phifra)\
**Post date:** [March 23, 2026, 8:25am UTC](https://forum.vfrnav.com/t/release-vfrnav-4-24/250/3 "2026-03-23T08:25:46Z")

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Many thanks for this update! 👍  
This is a real benefit for our Dimona with SteFly Nav 70.

I was able to successfully test over the weekend:

- serial connection via TTYS3 (Flarm) and TTYS7 (radio)
- position data externally from the Flarm → no more “No GPS” message
- send frequencies to the radio via a serial cable connection
- barometric altitude display from the Flarm’s external pressure data

Keep up the great work on this project!

Regards,  
Philip

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**Author:** ![Arian](https://forum.vfrnav.com/letter_avatar_proxy/v4/letter/a/51bf81/32.png) [@Arian](https://forum.vfrnav.com/u/Arian)\
**Post date:** [March 23, 2026, 6:08pm UTC](https://forum.vfrnav.com/t/release-vfrnav-4-24/250/4 "2026-03-23T18:08:28Z")

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Awesome update!

Unfortunately, the import of the checklists doesn’t work for me (iOS simply won’t let me select the files :/). Is this issue already known?

Best regards

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**Author:** ![Nachtfalke](https://forum.vfrnav.com/user_avatar/forum.vfrnav.com/nachtfalke/32/400_2.png) [@Nachtfalke](https://forum.vfrnav.com/u/Nachtfalke)\
**Post date:** [March 26, 2026, 5:14am UTC](https://forum.vfrnav.com/t/release-vfrnav-4-24/250/5 "2026-03-26T05:14:27Z")

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Thank you for the fix to persist the display height of the airspace cross-section window (Luftraumschnittfenster)!