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20/08/2026-26/08/2026
[1] Some tools, maps, and others things that come from the OpenStreetMap French community | © Jean Luis Zimmermann | map data © by OpenStreetMap Contributors.
Mapping
- In early August, v7.1.0 of the iD tagging schema was released, bringing new features to iD, GoMap!!, EveryDoor, and other editors. It includes multiple new presets (for example, for rooftop solar thermal collectors and
building=tent), marks some fields as openinghours-like, new values in fields such ascuisine, some region-specific tweaks, many better icons, fixes destination fields, and stops asking translators to translate the same phrase twice in many places, also better documentation, better repository structure, and many other improvements.
Community
- A poll by Mateusz Konieczny asks which improvements to iD presets are especially wanted.
- Sven Geggus discussed how to integrate data from Nomady, an Airbnb-like booking portal for small private campsites, into OpenStreetMap and OpenCampingMap.
- Rphyrin prepared for the State of the Map 2026, which took place in Paris and online from 28 to 30 August 2026.
OpenStreetMap Foundation
- The OpenStreetMap Foundation announced that Proton AG has been recognised as a Platinum Corporate Member, following two donations over the past two years, totalling around €70,000.
Local chapter news
- FOSSGIS tooted
that the FOSSGIS Conference is seeking a host venue for 2028. Interested parties can submit applications to host FOSSGIS 2028 by email until 16 October 2026. They also welcome expressions of interest in hosting future events, such as FOSSGIS 2029 or FOSSGIS 2030. - OpenStreetMap US announced that the OldInsuranceMaps project has joined YouthMappers, Yesterdays, and OpenHistoricalMap as an OSM US Charter Project.
that the FOSSGIS Conference is seeking a host venue for 2028. Interested parties can submit applications to host FOSSGIS 2028 by email until 16 October 2026. They also welcome expressions of interest in hosting future events, such as FOSSGIS 2029 or FOSSGIS 2030.Events
- [1] You can visit the page featuring the amazing posters which are being presented at State of the Map 2026.
OSM research
- Radim Štampach et al. have assessed the performance of the fAIr mapping environment (we reported earlier) compared with manual mapping in JOSM. They concluded that fAIr reduced the performance gap between novice and experienced contributors but introduced AI-related errors, while manual mapping in JOSM was faster and more accurate overall.
Maps
- Mobi Mapr built ► a visual dashboard to analyse the accessibility of ice cream parlours in Germany, using OpenStreetMap data.
OSM in action
- OK Lab Flensburg have developed ‘Open City Planner’, an interactive city planning GIS application for Flensburg’s city centre, powered by OpenStreetMap data.
Software
- The Prototype Fund is offering a new funding line aimed at young individual developers or small teams residing in Europe, focusing on open-source software infrastructure or data security.
- Stadia Maps explained their initiative around reworking their cartography from the ground up. There are some details about their recent overhaul of water name labeling.
Programming
- Yassa9 explained how to geolocate a photograph using OpenStreetMap data, geometry analysis, and CUDA GPU programming.
Did you know that …
- … the Valhalla router can route through pedestrian areas? OSRM has it too; after a pull request, which started in May 2025, was recently merged.
- …. r/Fahrrad invited the German cycling community on Reddit to improve the data quality of Komoot, Strava, and Bikerouter by contributing to OpenStreetMap through the StreetComplete app?
- … there’s a discussion on the OSM Wiki about mapping the Moon using the same principles as OpenStreetMap?
OSM in the media
- Ivan Nechaev, of Georgia Today, reported that the Georgian OpenStreetMap community worked online with 2025 aerial imagery from the National Agency of Public Registry, tracing buildings, checking roads, and adding addresses in Ambrolauri (western Georgia) and the surrounding area.
Other “geo” things
- The Iconoclasistas celebrated 20 years of participatory mapping ►.
- Radio France Internationale reported ► on the digitalisation of documents (including maps, documents, and photos) related to the historic mineral exploration in the Democratic Republic of Congo, which are archived in the AfricaMuseum. According to François Kervyn, a geologist and head of the museum’s Earth Sciences department, the documents were previously available only by special order for researchers, but digitisation is expected to make them more accessible.
- Shachar Maidenbaum has published a study analysing how Israel’s military GNSS spoofing tactics affect local people, eliciting reactions ranging from navigation apps being disrupted, to grocery deliveries being directed out of the country, and users of dating apps matching with people across borders.
- Jennifer Ouellette, of Ars Technica, reported that Japanese researchers have developed the muometric positioning system, an alternative to GNSS that uses cosmic-ray muons instead of radio signals. Muons are highly penetrating, charged particles constantly reaching Earth’s surface from different directions. By placing synchronised muon detectors at multiple locations and comparing the timing and directions of the same muons passing through them, the system can determine their relative positions. This could enable positioning underground, indoors, and underwater, where radio signals cannot penetrate effectively.
- NDR reported that Laura Hantschel, Lukas Hort, Annika Neumann, and Clara Mülle of ‘Pipapo Games‘ have developed MapMap, a cartography-themed puzzle game, during their studies. The gaming community has responded enthusiastically to its release, noting a sudden emerging trend of cartography-themed games. They mentioned another recent example, ‘Beware of the Cartographer‘, which focuses on mapping a mysterious land during the Age of Enlightenment, drawing borders between two warring kingdoms, meeting the locals, and balancing their demands with the requirements of the mission (we reported earlier).
- Duan Yuanqiang and others have updated their S2Coast-2023 dataset (version 3), the first global 10 m resolution coastline dataset derived from enhanced Sentinel-2 composite imagery, under a CC-BY 4.0 International licence. There are polyline and polygon features, modelled tide data for some places, and coastal examples. The OSM coastline dataset was used for validation. The article was published in Remote Sensing of Environment.
- Jules Rumeau has developed Scopus, an HD LiDAR viewer using IGN data that runs entirely in the browser. For a given area, the tool calculates the terrain hidden beneath vegetation and displays it side-by-side with aerial photography. Sunken lanes, low stone walls, ruined huts, and other features obscured by trees in standard imagery become visible within seconds.
►
►Upcoming Events
| Country | Where | Venue | What | When |
|---|---|---|---|---|
 | Cité Descartes | State of the Map 2026  | 2026-08-28 – 2026-08-30 | |
 | Essen | Verkehrs- und Umweltzentrum | Essen OSM-Treffen | 2026-08-28 |
 | Bengaluru | Nagarabhavi | OSM Bengaluru Mapping Party | 2026-08-29 |
| Jalpaiguri | Kadamtala Madrasa Math, DBC Road, Jalpaiguri | 14th OpenStreetMap West Bengal Mapping Party + AnkushTheHero Day | 2026-08-30 |
| Gurukripa, Sion | OSM Mumbai Mapping Party No.14 (Sion) | 2026-08-30 | |
 | Uppsala | Datorföreningen Update | Mapping meetup in Uppsala | 2026-08-30 |
| Hannover | Kuriosum | OSM-Stammtisch Hannover | 2026-08-31 |
| Saint-Étienne | Zoomacom | Rencontre Saint-Étienne et sud Loire | 2026-08-31 |
| Heidelberg | DEZERNAT#16 | Rhein-Neckar OSM Treffen | 2026-08-31 |
 | Salzburg | Bewohnerservice Elisabeth-Vorstadt | OSM-Treffpunkt | 2026-09-01 |
| Münster | BRASSERIE Münster | OSM-Stammtisch Münster | 2026-09-01 |
 | San Jose | Online | South Bay Map Night | 2026-09-01 |
| Missing Maps London Mapathon Beginner Friendly (with Training) (Online) [eng] | 2026-09-01 | |||
 | Brno | Kvartální OSM pivo – SOTM/2 CZ [Brno] | 2026-09-02 | |
| Praha | Přírodovědná fakulta Univerzity Karlovy | SOTM/2 CZ | 2026-09-02 |
| OSM Indoor Meetup | 2026-09-02 | |||
| Stuttgart | Biergarten Tschechen & Söhne | Stuttgarter OpenStreetMap-Treffen | 2026-09-02 |
| Bordeaux | Aquilenet, 20 Rue Tourat, 33000 Bordeaux | Rentrée bordelaise du groupe local OpenStreetMap | 2026-09-03 |
| Angers | L’Arrière Train, 3 rue de Frémur, Angers | Angers Rencontre mensuelle OpenStreetMap | 2026-09-03 |
| Bar Le Schmilblik | Rencontre mensuelle des contributeurs Paris sud | 2026-09-03 | |
| नई दिल्ली | Jitsi Meet (online) | OSM India – Monthly Online Mapathon | 2026-09-05 |
 | Osaka | 中崎町ホール Nakazakicho HALL, Salon de AmanTo天人 (Osaka) | State of the Map Asia 2026 | 2026-09-06 – 2026-09-07 |
 | 臺北市 | MozSpace Taipei | OpenStreetMap x Wikidata Taipei #92 | 2026-09-07 |
| Braunschweig | Stratum 0 | Braunschweiger Mappertreffen im Stratum 0 Hackerspace | 2026-09-08 |
 | Madrid | Online | Mappy Hour OSM España | 2026-09-08 |
| Hamburg | Voraussichtlich: “Variable”, Karolinenstraße 23 | Hamburger Mappertreffen | 2026-09-08 |
| temporärhaus | OSM-Stammtisch Ulm/Neu-Ulm | 2026-09-08 | |
| München | WikiMUC | Münchner OSM-Treffen | 2026-09-10 |
| Bochum | Das Labor, Alleestraße 50, Bochum | OSM-Treffen Bochum | 2026-09-10 |
 | København | Cafe Bevar’s | OSMmapperCPH | 2026-09-13 |
| New Delhi | Outside Delhi | OSM Delhi Mapping Party No.32 (Outside Delhi) | 2026-09-13 |
 | Greater London | 1 Cabot Square, 7th Floor, Canary Wharf E14 4QJ | EAW Volunteering Event | 2026-09-14 |
| CartONG : Mapathons en ligne 2026-2027 | 2026-09-14 |
Note:
If you like to see your event here, please put it into the OSM calendar. Only data which is there, will appear in weeklyOSM.
This weeklyOSM was produced by MarcoR, Mateusz Konieczny, Raquel Dezidério Souto, Strubbl, Andrew Davidson, barefootstache, derFred.
We welcome link suggestions for the next issue via this form and look forward to your contributions.