--- title: "Release Notes February 2024: SoftSIM, API, and Webhook Updates" url: "https://onomondo.com/product-update/release-notes-february-2024-softsim-api-and-webhook-enhancements/" description: We have some exciting updates to share this month regarding the Onomondo SoftSIM and platform. Read on to learn how these updates can enhance your IoT projects with new levels of efficiency and control. date_published: 2024-02-27 date_modified: 2026-03-10 content_type: Product Update site_name: Onomondo site_url: "https://onomondo.com/" --- # Release Notes February 2024: SoftSIM, API, and Webhook Updates > We have some exciting updates to share this month regarding the Onomondo SoftSIM and platform. Read on to learn how these updates can enhance your IoT projects with new levels of efficiency and control. ###### Product Update ###### 27.02.2024 # Release Notes February 2024: SoftSIM, API, and Webhook Updates ![feb24-release-notes](https://cdn.growth.onomondo.com/app/uploads/2024/03/26091321/feb24-release-notes-1024x512.png) We have some exciting updates to share this month regarding the Onomondo SoftSIM and platform. Read on to learn how these updates can enhance your IoT projects with new levels of efficiency and control. ### Nordic SoftSIM Improvements **What’s New:** We’ve made substantial improvements to the Nordic nRF91-Series SoftSIM, significantly reducing flash memory usage. This update is a game-changer for devices requiring OTA firmware updates alongside SoftSIM, addressing previous memory constraints. **How It Works:** - **TF-M Application Memory Reduction:** From 256kB to 64kB (75% decrease) - **TF-M Storage Memory Reduction:** From 64kB to 32kB (50% decrease) **What To Do:** Explore the updated partitioning scheme on [GitHub](https://github.com/onomondo/nrf-softsim) to implement these improvements on your devices. --- ### Quectel EG-21-GL Firmware Release **What’s New:** Quectel EG-21-GL modems now officially support SoftSIM integration as part of the firmware, simplifying deployment and use of SoftSIM technology. **What To Do:** For detailed information and to take advantage of this SoftSIM integration, check out our [integration guide for the EG-21-GL.](https://help.onomondo.com/en/articles/209638-how-to-integrate-the-onomondo-softsim-with-the-eg21-gl-from-quectel) --- ### API Changes: Network Whitelist API **What’s New:** An update to our API now requires specifying both the Mobile Country Code (MCC) and the Mobile Network Code (MNC) for network whitelist API calls. This change aims to enhance network connection control and avoid unexpected costs. **What To Do:** Adjust your API call configurations to include both MCC and MNC where required. Refer to our [updated API documentation](https://docs.onomondo.com/readme/network-whitelists#get-network-whitelists) for guidance. This update is effective March 27th, 2024. --- ### Webhooks IP Address Update **What’s New:** To improve our service delivery, we’re introducing a new IP address for Webhooks: **52.58.186.11/32**. **What To Do:** Update your firewall settings to include this new IP address alongside the current ones, ensuring continuous reception of Webhooks without interruption. More documentation can be [found here.](https://docs.onomondo.com/) --- These updates reflect our continuous effort to refine and enhance your experience with Onomondo’s growing platform of IoT connectivity solutions. For any questions or further assistance, please [reach out](https://onomondo.com/contact/request-demo/) to our team. ### Build your own network Secure, reliable device connectivity anywhere with our efficient IoT SIMs. Gain complete control and leave behind unreliable networks. [](https://onomondo.com/product/global-iot-sim/) [ See our global IoT SIMs ](https://onomondo.com/product/global-iot-sim/) ### Start testing Onomondo for free Ready to experience next-generation IoT connectivity? Create an account, explore the platform, and start testing Onomondo’s IoT SIM cards for free. [ Get started ](https://onomondo.com/pricing/) ## You might also be interested in ![Remote SIM Provisioning for IoT](https://cdn.growth.onomondo.com/app/uploads/2026/04/21115413/Remote-SIM-Provisioning-featured-1024x536.png) Articles###### Remote SIM Provisioning: What is it and how it works for IoT Connectivity Basics IoT SIM Learn what Remote SIM Provisioning is, how it works, and why it matters for IoT deployments – from eUICC fundamentals to SGP.32, form factors, and real-world benefits. [ Read more ](https://onomondo.com/blog/remote-sim-provisioning-iot/) ![iSIM](https://cdn.growth.onomondo.com/app/uploads/2026/03/01092112/iSIM-1024x536.png) Articles###### What is an IoT iSIM? How it works, benefits, and why it matters IoT / M2M SIMs If you’re building IoT devices today, you’re likely looking at traditional, physical SIM form factors, and possibly embedded SIMs. But there’s a newer form factor starting to reshape how connectivity is designed: iSIMs. So what actually changes with iSIMs—and when do they make sense to use? We break it down in this article. [ Read more ](https://onomondo.com/blog/what-is-an-iot-isim/) ![SGP.32 eSIM IoT interview with Henrik Aagaard](https://cdn.growth.onomondo.com/app/uploads/2026/03/31085742/eSIM-IoT-Henriks-interview-1024x576.png) Articles###### “eSIM IoT isn’t connectivity – it’s a device capability”. An interview about SGP.32 with Henrik Aagaard Future-proofing IoT IoT SIM You’ve probably heard a lot about eSIM IoT, SGP.32 – how much of it is substance and how much is noise? Henrik Aagaard separates the wheat from the chaff. [ Read more ](https://onomondo.com/blog/esim-iot-isnt-connectivity-its-a-device-capability-an-interview-about-sgp-32-with-henrik-aagaard/) --- *This is a machine-readable version of [Release Notes February 2024: SoftSIM, API, and Webhook Updates](https://onomondo.com/product-update/release-notes-february-2024-softsim-api-and-webhook-enhancements/).* *Last updated: March 10, 2026* ## About Onomondo Onomondo is a global cellular IoT connectivity platform providing IoT SIM cards, eSIM, and SoftSIM with a management platform, real-time diagnostics, and cloud integrations. Operates across 680+ networks in 180+ countries. Founded 2012, headquartered in Copenhagen, Denmark. ISO 27001:2022 certified. - Website: https://onomondo.com - Documentation: https://docs.onomondo.com - Knowledge Base: https://help.onomondo.com