Improved Brandenburg/Prussian exclaves between Brunswick and Hanover (Hehlingen, Wolfsburg) and added them to most of the pre-1815 (Brandenburg-)Prussia relations (I cannot find when they passed to Brandenburg but it was at least by the 18c.)

Added County of Spiegelberg

More changes to the section of the border of Brunswick around Bisperode and Bessingen, this time with borders c.1841

Improved/corrected small section of the border of Brunswick around Bisperode and Bessingen

Added Landdrostei Stade

Improved/corrected small section of the border of Regierungsbezirk Stade

Improved Oldenburg-Hanover border; corrected part of Oldenburg/Münster-Hanover border pre-1815; Added County of Diepholz pre-1807

Added small missing exclave of Brunswick and added a little detail to some adjacent sections of border

Added rough version of the Bailiwick of Tournai (post-Treaty of Nijmegen)

Added Landdrosteien Osnabrück & Aurich; tweaked Hanover-Oldenburg, Hanover-Westphalia and Osnabrück eastern borders; tweaked area north of Minden and Hessian exclaves pre-1815

Added some tags to the County of Saarwerden

Added Amt Neuhaus 1814-66 and amended Hanover-Mecklenburg border pre-1866/67; removed duplicated "Mecklenburg" relation

Corrected Blintendorf exclave boundaries and a small section of the Reuß inner boundary; Added label to Reuß j.L.; Added missing Thuringian exclaves to Prussia 1815-66

Added Saxon Neustädtischer Kreis; Tweaked some Electoral Saxony boundaries; Fixed Saxe-Weimar-Eisenach relations

Tweaked early HRE boundaries

Tweaked a few labels

Tweaked label of the Free County of Burgundy and added one for Montbéliard/Mömpelgard

Tweaked a few Anglo-Saxon kingdom labels and added a few more

Added labels for various Anglo-Saxon Kingdoms (and a few Celtic ones)

Added Saxon Upper Lusatia (pre- and post-1815)