Add an item into NEWS.md

NEWS.md

@@ -31,12 +31,12 @@ New language features
  the module is first loaded, and on process startup if a pre-compiled
  version of the module is present ([#1268]).
 
- * Multi-line comments ([#69], [#6128]): `#= .... =#` 
+ * Multi-line comments ([#69], [#6128]): `#= .... =#`
 
  * `--bounds-check=yes|no` compiler option
 
  * Support for a limited number of infix unicode operators ([#552], [#6582]):
- 
+
  | Precedence class | Operators (with synonyms, if any)
  | ---------------- | ---------------------------------
  | == | ≥ (>=) ≤ (<=) ≡ (===) ≠ (!=) ≢ (!==) .≥ (.>=) .≤ (.<=) .!= (.≠) ∈ (`in`) ∉ (`(x,y)->!in(x, y)`) ∋ (`(x,y)->in(y, x)`) ∌ (`(x,y)->!in(y, x)`) ⊆ (`issubset`) ⊈ (`(x,y)->!issubset(x, y)`) ⊊ (`(x,y)->x⊆y && x!=y`) ⊂ ⊄ |
@@ -76,7 +76,7 @@ Library improvements
  fixed-width or messy whitespace-delimited data ([#5403]).
 
  * The Airy, Bessel, Hankel, and related functions (`airy*`,
- `bessel*`, `hankel*`) now detect errors returned by the underlying 
+ `bessel*`, `hankel*`) now detect errors returned by the underlying
  AMOS library, throwing an `AmosException` in that case ([#4967]).
 
  * `methodswith` now returns an array of `Method`s ([#5464]) rather
@@ -162,7 +162,7 @@ Library improvements
 
  * `condskeel` for Skeel condition numbers ([#5726]).
 
- * `norm(::Matrix)` no longer calculates a vector norm when the first 
+ * `norm(::Matrix)` no longer calculates a vector norm when the first
  dimension is one ([#5545]); it always uses the operator (induced)
  matrix norm.
 
@@ -263,12 +263,19 @@ Library improvements
  * Very large ranges (e.g. `0:typemax(Int)`) can now be constructed, but some
  operations (e.g. `length`) will raise an `OverflowError`.
 
- * Extended API for ``cov`` and ``cor``, which accept keyword arguments ``vardim``, 
+ * Extended API for ``cov`` and ``cor``, which accept keyword arguments ``vardim``,
  ``corrected``, and ``mean`` ([#6273])
 
  * New functions `randsubseq` and `randsubseq!` to create a random subsequence of an array ([#6726])
 
 
+Build improvements
+------------------
+
+ * Dependencies are now verified against stored MD5/SHA512 hashes, to ensure
+ that the correct file has been downloaded and was not modified. ([#6773])
+
+
 Deprecated or removed
 ---------------------
 
@@ -286,8 +293,8 @@ Deprecated or removed
  argument specifying the floating point type to which they apply. The old
  behaviour and `[get/set/with]_bigfloat_rounding` functions are deprecated ([#5007])
 
- * `cholpfact` and `qrpfact` are deprecated in favor of keyword arguments in 
- `cholfact(...,pivot=true)` and `qrfact(...,pivot=true)` ([#5330]) 
+ * `cholpfact` and `qrpfact` are deprecated in favor of keyword arguments in
+ `cholfact(...,pivot=true)` and `qrfact(...,pivot=true)` ([#5330])
 
  * `symmetrize!` is deprecated in favor of `Base.LinAlg.copytri!` ([#5427])
 
@@ -490,12 +497,12 @@ New library functions
 
  * `varm`, `stdm` ([#2265]).
 
- * `digamma`, `invdigamma`, `trigamma` and `polygamma` for calculating derivatives of `gamma` function ([#3233]). 
+ * `digamma`, `invdigamma`, `trigamma` and `polygamma` for calculating derivatives of `gamma` function ([#3233]).
 
  * `logdet` ([#3070]).
 
  * Names for C-compatible types: `Cchar`, `Clong`, etc. ([#2370]).
- 
+
  * `cglobal` to access global variables ([#1815]).
 
  * `unsafe_pointer_to_objref` ([#2468]) and `pointer_from_objref` ([#2515]).
@@ -514,9 +521,9 @@ New library functions
  ([#3050]).
 
  * `interrupt` for interrupting worker processes ([#3819]).
- 
+
  * `timedwait` does a polled wait for an event till a specified timeout.
- 
+
  * `Condition` type with `wait` and `notify` functions for `Task` synchronization.
 
  * `versioninfo` provides detailed version information, especially useful when