<s>
LibreOffice	B-Operating_System
Base	I-Operating_System
is	O
a	O
free	B-License
and	I-License
open-source	I-License
database	O
development	O
and	O
administration	O
tool	O
for	O
relational	B-Application
database	I-Application
management	I-Application
systems	I-Application
that	O
is	O
part	O
of	O
the	O
LibreOffice	B-Application
office	O
suite	O
.	O
</s>
<s>
LibreOffice	B-Operating_System
Base	I-Operating_System
was	O
built	O
off	O
of	O
a	O
fork	B-Application
of	O
OpenOffice.org	B-Application
and	O
was	O
first	O
released	O
as	O
version	O
3.4.0.1	O
on	O
October	O
4	O
,	O
2011	O
.	O
</s>
<s>
Similarly	O
to	O
the	O
other	O
packages	O
in	O
the	O
LibreOffice	B-Application
suite	O
,	O
Base	O
is	O
supported	O
across	O
multiple	O
platforms	O
including	O
Microsoft	B-Application
Windows	I-Application
,	O
macOS	B-Application
,	O
and	O
Linux	B-Application
.	O
</s>
<s>
Base	O
is	O
recognized	O
for	O
its	O
cross-platform	O
compatibility	O
relative	O
to	O
Microsoft	B-Application
Access	I-Application
,	O
which	O
is	O
developed	O
exclusively	O
for	O
Windows	B-Application
.	O
</s>
<s>
LibreOffice	B-Operating_System
Base	I-Operating_System
is	O
designed	O
to	O
allow	O
users	O
to	O
easily	O
create	O
,	O
access	O
,	O
modify	O
,	O
and	O
view	O
databases	O
and	O
their	O
data	O
.	O
</s>
<s>
This	O
is	O
done	O
by	O
providing	O
users	O
with	O
a	O
graphical	B-Application
user	I-Application
interface	I-Application
that	O
allows	O
users	O
to	O
work	O
with	O
four	O
main	O
tools	O
:	O
Tables	B-Application
,	O
queries	B-Language
,	O
forms	O
,	O
and	O
reports	O
.	O
</s>
<s>
LibreOffice	B-Operating_System
Base	I-Operating_System
requires	O
Java	B-Device
in	O
order	O
to	O
create	O
databases	O
with	O
forms	O
,	O
wizards	O
,	O
and	O
more	O
.	O
</s>
<s>
Embedded	O
databases	O
are	O
stored	O
as	O
a	O
single	O
file	O
using	O
C++	B-Language
based	O
Firebird	B-Application
and	O
Java-based	O
HSQLDB	B-Application
as	O
its	O
storage	O
engine	O
.	O
</s>
<s>
When	O
connecting	O
to	O
external	O
databases	O
,	O
Base	O
acts	O
as	O
a	O
graphical	B-Application
user	I-Application
interface	I-Application
front-end	O
to	O
facilitate	O
interactions	O
with	O
various	O
database	O
systems	O
including	O
Access	B-Application
Database	I-Application
Engine	I-Application
(	O
ACE/JET	O
)	O
,	O
ODBC/JDBC	O
data	O
sources	O
,	O
MySQL	B-Application
,	O
MariaDB	B-Application
,	O
and	O
PostgreSQL	B-Application
.	O
</s>
<s>
Base	O
has	O
been	O
described	O
as	O
an	O
unusual	O
project	O
in	O
the	O
niche	O
of	O
database	O
management	O
system	B-Application
software	I-Application
which	O
tends	O
toward	O
proprietary	O
software	O
designed	O
for	O
enterprise	O
users	O
.	O
</s>
<s>
Work	O
was	O
started	O
in	O
2014	O
to	O
transition	O
the	O
embedded	O
storage	O
engine	O
from	O
HSQLDB	B-Application
to	O
the	O
Firebird	B-Application
SQL	O
back-end	O
.	O
</s>
<s>
Firebird	B-Application
has	O
been	O
included	O
in	O
LibreOffice	B-Application
as	O
an	O
experimental	O
option	O
since	O
LibreOffice	B-Application
4.2	I-Application
.	O
</s>
<s>
In	O
August	O
2018	O
,	O
The	B-Operating_System
Document	I-Operating_System
Foundation	I-Operating_System
announced	O
the	O
release	O
of	O
LibreOffice	B-Application
version	O
6.1	O
.	O
</s>
<s>
If	O
the	O
experimental	O
mode	O
is	O
used	O
,	O
the	O
embedded	O
Firebird	B-Application
engine	O
support	O
is	O
fully	O
available	O
,	O
and	O
the	O
old	O
HSQLDB	B-Application
engine	O
is	O
deprecated	O
—	O
although	O
still	O
available	O
—	O
and	O
replaced	O
by	O
Firebird	B-Application
as	O
the	O
default	O
option	O
.	O
</s>
<s>
In	O
February	O
2019	O
,	O
The	B-Operating_System
Document	I-Operating_System
Foundation	I-Operating_System
released	O
LibreOffice	B-Application
version	O
6.2	O
.	O
</s>
<s>
The	O
embedded	O
Firebird	B-Application
engine	O
support	O
was	O
moved	O
from	O
experimental	O
mode	O
to	O
operational	O
and	O
the	O
Firebird	B-Application
Migration	O
Assistant	O
can	O
create	O
a	O
backup	O
copy	O
of	O
content	O
as	O
an	O
XML	O
document	O
for	O
the	O
migration	O
process	O
.	O
</s>
<s>
In	O
February	O
2020	O
,	O
embedded	O
Firebird	B-Application
was	O
moved	O
back	O
to	O
experimental	O
mode	O
,	O
taking	O
effect	O
in	O
version	O
6.4.1	O
.	O
</s>
