XML Builder was the part of fast-xml-parser for years. But considering that any bug in builder may false-alarm the users who are only using parser and vice-versa, we have decided to split it into a separate package.

To migrate to fast-xml-builder;

From

import { XMLBuilder } from "fast-xml-parser";

To

import  XMLBuilder  from "fast-xml-builder";

XMLBuilder will be removed from current package in any next major version of this library. So better to migrate.

Full Changelog: https://github.com/NaturalIntelligence/fast-xml-parser/compare/v5.3.9...v5.3.9

• support maxNestedTags
• handle non-array input for XML builder when preserveOrder is true (By Angelo Coetzee)
• save use of js properies Full Changelog: https://github.com/NaturalIntelligence/fast-xml-parser/compare/v5.3.7...v5.3.8

• Unexport X2jOptions at declaration site by @Drarig29 in https://github.com/NaturalIntelligence/fast-xml-parser/pull/787

• @Drarig29 made their first contribution in https://github.com/NaturalIntelligence/fast-xml-parser/pull/787

Full Changelog: https://github.com/NaturalIntelligence/fast-xml-parser/compare/v5.3.6...v5.3.7

• Improve security and performance of entity processing
  • new options maxEntitySize, maxExpansionDepth, maxTotalExpansions, maxExpandedLength, allowedTags,tagFilter
  • fast return when no edtity is present
  • improvement replacement logic to reduce number of calls

Full Changelog: https://github.com/NaturalIntelligence/fast-xml-parser/compare/v5.3.5...v5.3.6

• Add missing exports to fxp commonjs types by @jeremymeng in https://github.com/NaturalIntelligence/fast-xml-parser/pull/782
• fix: Escape regex char in entity name
• update strnum to 2.1.2

• @jeremymeng made their first contribution in https://github.com/NaturalIntelligence/fast-xml-parser/pull/782

Full Changelog: https://github.com/NaturalIntelligence/fast-xml-parser/compare/v5.3.4...v5.3.5

• fix #775: transformTagName with allowBooleanAttributes adds an unnecessary attribute
• Performance improvement for stopNodes (By Maciek Lamberski)

• Launched Separate CLI module
• Replace Buffer with Uint8Array

Full Changelog: https://github.com/NaturalIntelligence/fast-xml-parser/compare/v5.2.4...v5.2.4