boost 1.75

Caveat removed, as it no longer applies.

Formula/boost.rb

@@ -1,9 +1,9 @@
 class Boost < Formula
   desc "Collection of portable C++ source libraries"
   homepage "https://www.boost.org/"
-  url "https://dl.bintray.com/boostorg/release/1.74.0/source/boost_1_74_0.tar.bz2"
-  mirror "https://dl.bintray.com/homebrew/mirror/boost_1_74_0.tar.bz2"
-  sha256 "83bfc1507731a0906e387fc28b7ef5417d591429e51e788417fe9ff025e116b1"
+  url "https://dl.bintray.com/boostorg/release/1.75.0/source/boost_1_75_0.tar.bz2"
+  mirror "https://dl.bintray.com/homebrew/mirror/boost_1_75_0.tar.bz2"
+  sha256 "953db31e016db7bb207f11432bef7df100516eeb746843fa0486a222e3fd49cb"
   license "BSL-1.0"
   head "https://github.com/boostorg/boost.git"
 
@@ -81,19 +81,6 @@ class Boost < Formula
     system "./b2", *args
   end
 
-  def caveats
-    s = ""
-    # ENV.compiler doesn't exist in caveats. Check library availability
-    # instead.
-    if Dir["#{lib}/libboost_log*"].empty?
-      s += <<~EOS
-        Building of Boost.Log is disabled because it requires newer GCC or Clang.
-      EOS
-    end
-
-    s
-  end
-
   test do
     (testpath/"test.cpp").write <<~EOS
       #include <boost/algorithm/string.hpp>