Merge pull request #333 from Merck/news

Update `NEWS.md` for gsDesign2 1.1.1

Author: LittleBeannie

DESCRIPTION

@@ -1,6 +1,6 @@
 Package: gsDesign2
 Title: Group Sequential Design with Non-Constant Effect
-Version: 1.1.0.7
+Version: 1.1.1
 Authors@R: c(
     person("Keaven", "Anderson", email = "keaven_anderson@merck.com", role = c("aut")),
     person("Yilong", "Zhang", email = "elong0527@gmail.com", role = c("aut")),

NEWS.md

@@ -1,3 +1,56 @@
+# gsDesign2 1.1.1
+
+## New features
+
+- The `as_rtf()` method is now available for `fixed_design` and `gs_design`
+  objects for generating RTF table outputs (#278).
+
+## Bug fixes
+
+- `gs_power_wlr()` and `to_integer()` now check and convert integer
+  sample size more rigorously (#322).
+- `gs_design_*()` now handle exceptions explicitly when all hazard ratio
+  is set to 1 throughout the study (#301).
+- `fixed_design_rd()` will not generate warnings due to the previous
+  default value change of `h1_spending` (#296).
+
+## Improvements
+
+- `gs_power_ahr()` now runs twice as fast by using data.table and other
+  performance optimizations (#295), enhanced by similar
+  improvements in `gs_info_ahr()` and `pw_info()` (#300).
+- Enrollment and failure rate input constructors and validators
+  are refactored to check only the format instead of the class.
+  This change reduces the number of warning messages and catches
+  real exceptions as errors properly (#316).
+- Nested functions are refactored into reusable internal functions,
+  to improve code rigor, avoid potential scoping pitfalls, and
+  facilitate debugging (#235).
+- For fixed designs, the variable names of the table outputs from
+  `to_integer()` and `summary()` are updated (#292).
+
+## Documentation
+
+- Add a new vignette
+  [statistical information under null and
+  alternative hypothesis](https://merck.github.io/gsDesign2/articles/story-info-formula.html)
+  (#289).
+- Improve `define_enroll_rate()` and `define_fail_rate()` documentation by
+  adding detailed descriptions and improving code examples (#302).
+- The function reference page now has dedicated sections for piecewise
+  exponential distributions and computing trial events (#258).
+- Use the four trailing dashes convention to standardize code comment
+  section format (#308).
+
+## Namespace and testing
+
+- Tidy up namespace by removing rlang from and adding stats to `Imports` (#307, #325).
+- Qualify namespaces in tests to avoid `library()` calls (#332).
+- Fortify the GitHub Actions workflows by limiting the token usage only when
+  necessary and enabling manual trigger of workflow runs (#326).
+- Update GitHub Actions workflows to the latest versions from upstream
+  (#330).
+
 # gsDesign2 1.1.0
 
 ## Breaking changes