diff --git a/var/spack/repos/builtin/packages/boost/package.py b/var/spack/repos/builtin/packages/boost/package.py
index 55b9934b3f..801ecb03b4 100644
--- a/var/spack/repos/builtin/packages/boost/package.py
+++ b/var/spack/repos/builtin/packages/boost/package.py
@@ -29,8 +29,9 @@ class Boost(Package):
     license("BSL-1.0")
 
     version("develop", branch="develop", submodules=True)
-    version("1.83.0", sha256="6478edfe2f3305127cffe8caf73ea0176c53769f4bf1585be237eb30798c3b8e")
+    version("1.85.0", sha256="7009fe1faa1697476bdc7027703a2badb84e849b7b0baad5086b087b971f8617")
     version("1.84.0", sha256="cc4b893acf645c9d4b698e9a0f08ca8846aa5d6c68275c14c3e7949c24109454")
+    version("1.83.0", sha256="6478edfe2f3305127cffe8caf73ea0176c53769f4bf1585be237eb30798c3b8e")
     version("1.82.0", sha256="a6e1ab9b0860e6a2881dd7b21fe9f737a095e5f33a3a874afc6a345228597ee6")
     version("1.81.0", sha256="71feeed900fbccca04a3b4f2f84a7c217186f28a940ed8b7ed4725986baf99fa")
     version("1.80.0", sha256="1e19565d82e43bc59209a168f5ac899d3ba471d55c7610c677d4ccf2c9c500c0")
@@ -287,6 +288,13 @@ def libs(self):
     # (https://github.com/spack/spack/pull/32879#issuecomment-1265933265)
     conflicts("%oneapi", when="@1.80")
 
+    # Boost 1.85.0 stacktrace added a hard compilation error that has to
+    # explicitly be suppressed on some platforms:
+    # https://github.com/boostorg/stacktrace/pull/150. This conflict could be
+    # turned into a variant that allows users to opt-in when they know it is
+    # safe to do so on affected platforms.
+    conflicts("+clanglibcpp", when="@1.85: +stacktrace")
+
     # Patch fix from https://svn.boost.org/trac/boost/ticket/11856
     patch("boost_11856.patch", when="@1.60.0%gcc@4.4.7")
 
@@ -636,6 +644,13 @@ def determine_b2_options(self, spec, options):
             if spec.variants["cxxstd"].value == "11":
                 cxxflags.append("-std=c++11")
 
+        # See conflict above and
+        # https://github.com/boostorg/stacktrace/pull/150. This suppresses a
+        # compilation error that must be explicitly suppressed. Because of the
+        # conflict we can suppress the error without input from a user.
+        if spec.satisfies("@1.85: +stacktrace"):
+            cxxflags.append("-DBOOST_STACKTRACE_LIBCXX_RUNTIME_MAY_CAUSE_MEMORY_LEAK")
+
         if cxxflags:
             options.append('cxxflags="{0}"'.format(" ".join(cxxflags)))