The v1.9 release is setting the stage for the first major version bump of Leaflet since 2016! A lot has changed since then, and it’s time for Leaflet to grow together with the web platform. After this release, we are branching off the 1.x code and putting it in maintenance mode — reserving potential 1.x releases only for critical bugfixes. Although version 2.0 is still far away and will take some time to take shape, we plan to make the following changes: Dropping support for Internet Explorer. This has been a long time coming, but now that Internet Explorer is officially end-of-life, it’s tim ..read more

We have just released Leaflet v1.8.0, a culmination of 1.5 years of development. This is a huge release focused on bug fixes, major reliability and accessibility improvements, cleaning up legacy code, and numerous improvements to documentation, development workflow and release process. A culmination of hundreds of contributions, and a preparation for bigger changes to come. ? From now on, releases will become much more frequent. I’m making this release just as an air raid alert is sounding outside, in Kyiv, warning about an imminent Russian air strike. This release is dedicated to Ukrainian fi ..read more

Leaflet 0.7 Released — with IE11 touch support, upscaling tiles and tons of other improvements and bugfixes! Meanwhile, I’ve joined the MapBox team full-time… After another 5 months of active development with lots of contributors involved, I’m happy to announce the release of Leaflet 0.7 stable. This is a bugfix-heavy release — as Leaflet becomes more and more stable feature-wise, the focus shifts towards stability, usability and API improvements over new features. I’ve also been holding back some of the planned deep refactorings (which I’ll talk about later in the post) until 0.7 is released ..read more

One of the greatest things about Leaflet is its powerful plugin ecosystem. The Leaflet plugins page lists dozens of awesome plugins, and more are being added every week. This guide lists a number of best practices for publishing a Leaflet plugin that meets the quality standards of Leaflet itself. Also available in the repo. Presentation Repository The best place to put your Leaflet plugin to is a separate GitHub repository. If you create a collection of plugins for different uses, don’t put them in one repo — it’s usually easier to work with small, self-contained plugins in individual reposito ..read more

Leaflet 0.6 released — with nicer controls, better usability and tons of API improvements and various bugfixes — more than 120 changes! The first ever Leaflet Code Sprint happening in Washington, DC with the MapBox team… After 5 months of active development with 36 contributors involved since the previous major version, today I’m excited to finally announce the release of Leaflet 0.6 stable. 0.6 highlights include nicer controls, lots of interaction usability improvements, many new API methods, events and options, ability to save layers as GeoJSON, much better test infrastructure and TONS of b ..read more

This is a guest post from Jacob Toye, an active Leaflet contributor and also the author of the most sophisticated vector drawing and editing plugin out there, which is presented in this post. Leaflet.draw was born from the need to provide users with the ability draw polygons on the map. Leaflet already provided a very nice way of editing existing polylines and polygons. The logical next step was to expand on this functionality to allow the creation of these layers, and ultimately the other vector layers. Upon release the immediate response from the Leaflet community was very positive. It becam ..read more

Rejoice, everyone — after 4.5 months of development with 26 contributors involved since the previous major release, I’m happy to announce the release of Leaflet 0.5 stable, hooray! 0.5 highlights include IE10 touch devices and Metro apps support, retina-enabled markers, a much better panning inertia implementation, hand cursors for dragging and a new zoom control design. But the real power of this release comes with about a hundred of subtle improvements and bugfixes, improving usability, performance and overall “feel” of browsing the map even further. As always, you can find CDN links and dow ..read more

0.4.5 release While we continue working on the next major release (0.5), today we decided to release Leaflet 0.4.5. It contains only one small but important bugfix for wonky zoom animation on upcoming Chrome 23 (currently in beta and to be released in a couple of weeks) and Internet Explorer 10 (that will eventually hit Windows 7 in addition to Windows 8). Everyone is encouraged to upgrade (before Chrome 23 turns stable). As always, you can find CDN links and downloads for the new release on the download page. Plans for 0.5 As Leaflet approaches feature-complete state and API stabilization, we ..read more

This is a guest post from Dave Leaver, an active Leaflet contributor (particularly, he implemented 0.4 zoom animation improvements) and also the author of the best marker clustering plugin out there, which is presented in this post. Almost anyone who has a map with markers on it will eventually end up having those markers overlap. At my day job at Smartrak we regularly have customers with thousands of points on the map. When you zoom it out, these markers all overlap and make the map look messy and crowded. There are also cases where the markers overlap even on the maximum zoom level, which ma ..read more

Following the Leaflet 0.4 release, there were several minor bugfix releases over the past week, with Leaflet 0.4.3 released today. They contain fixes for some bugs that were discovered and also bring some improvements to the new GeoJSON API to make it even more flexible — see the changelog below. I’ve also written a new tutorial, inspired by the Texas Tribune US Senate Runoff Results map by Ryan Murphy (also powered by Leaflet). It will show you step-by-step how to create a beautiful interactive choropleth map of US States Population Density with the help of GeoJSON and custom controls, and ho ..read more