Release 1.1.0 #120

What ships

main is 50 commits ahead of v1.0.0 (2026-08-21). These reach a NuGet consumer:

• Fixed (DateFormat.Timestamp reads a date-only value one day early: AssumeUniversal makes it UTC midnight #111, fix: read a date-only timestamp as midnight US/Eastern #114): a date the API sends without a time now reads as midnight US/Eastern. It was read as UTC midnight and came back as the evening before. This hit GetExpirationsAsync on the default date format, and several fields under DateFormat.Timestamp.
• Changed (config: filter environment variables and share configuration setup #94): only MARKETDATA_-prefixed environment variables are read into configuration. The Microsoft.Extensions.Configuration.EnvironmentVariables dependency is dropped.
• Changed (Dependabot): the Microsoft.Extensions.* dependencies move from 10.0.11 to 10.0.14.

The rest is docs, CI, the review bot setup, tests and example-app bumps.

Version

1.1.0. No public or protected symbol under src/MarketDataApp changed: the new types are internal, and DateFormat changed only in its XML docs. Under the SDK review rules (.github/code-review/REVIEW.md, #106), a non-breaking change takes the next minor, which is what #114 declared.

.github/RELEASE_PROCESS.md §1 still maps a bug fix to 1.0.Z, which disagrees with that rule. Aligning the two is out of scope here.

Steps

1. A PR promotes ## [Unreleased] to ## [1.1.0] in CHANGELOG.md. It restores the Fixed entry for DateFormat.Timestamp reads a date-only value one day early: AssumeUniversal makes it UTC midnight #111, which was dropped from Unreleased just before fix: read a date-only timestamp as midnight US/Eastern #114 merged.
2. Run Tag and Release with version: 1.1.0, ref: main, confirm: RELEASE.
3. Check that MarketDataApp 1.1.0 is on NuGet.org, then run the post-release checks in RELEASE_PROCESS.md §7.