This page describes breaking API changes between diagrams 1.3 and 1.4, along with explanations of how to migrate to the new 1.4 API.
The 1.4 release is actually quite light on breaking API changes; most of the changes were additions and bug fixes. Below are the things we are aware of; feel free to add new things below, or create an issue if you are unsure.
snugBR functions have been deprecated, since they were unintuitive, ad-hoc, and not particularly useful, especially since e.g.
snugB do not commute (so in theory
snugLB would be different). If you were using these functions, you can switch to using a composition like
snugB . snugL directly, or use
snug with a direction vector. See the discussion at diagrams-lib issue #250 for more details.
2 Moved Query functions
Query-related functions (
clearValue) have moved from the
diagrams-core package to the
diagrams-lib package; they can now be found in the
Diagrams.Query module. You may have to change an import if you were importing them directly from
Diagrams.Core.Types before. However, most likely you would get them just by importing
Diagrams.Prelude, in which case no changes are necessary.